# Stoichiometry Essays & Research Papers

## Best Stoichiometry Essays

• Stoichiometry - 1576 Words
AP Chemistry Unit 2 Notes Stoichiometry  You should understand all that is presented in chapter 3 of your text (Zumdahl: Chemistry, 8th edition). Some of the highlights are presented below.  Atomic Masses (Section 3.1)       Nearly every element is made up of atoms of more than one isotope for that element. A few, like Be, only have one isotope. Others can have a large number of isotopes. Tin (Sn) has ten isotopes. (No pun intended.) Isotopic abundance is determined by the use of...
1,576 Words | 6 Pages
• Stoichiometry - 949 Words
Baking soda & vinegar: The reaction By Gregory Johnson Lab Partners: Angel Medina Ian Bailon Erika Alvarado Instructor: Caroline Chen April 1st, 2011 Introduction In chemistry class, we conducted an experiment involving baking soda and vinegar. We mixed them together and we ended up with a carbon dioxide, water, and sodium acetate. We did this to learn more about stoichiometry and how easily a mistake can be made when doing an...
949 Words | 4 Pages
• Stoichiometry Quiz - 1690 Words
Chemistry 1: PROBLEM SET SY 2012/2013 CLASS #: _______________ NAME_________________________________________ SECTION: ______________________ Stoichiometry II - Mole Calculations/ Limiting and Excess Reagent – Lecture Notes 1. Given the balanced equation N2(g) + 3H2(g)  2NH3(g) How many moles of ammonia are produced when 0.60 mol of nitrogen reacts with hydrogen? 2. Given the equation: SiO2 + HF  SiF4 + H2O a. Calculate the number of moles HF that would completely react with 2.5 moles of...
1,690 Words | 7 Pages
• Stoichiometry Lab - 1143 Words
﻿Stoichiometry lab By: James Stewart Purpose: To calculate mole ratios Introduction: There are two types of chemical analysis; qualitative analysis which is the identification of a substance present in a material, and qualitative analysis which measures the amount of the substance. In this lab, you will perform a quantitative analysis of a two-step reaction. Copper(II) oxide will be synthesized from a known mass of copper(II) sulfate pentahydrate. Using the relationship of the balanced...
1,143 Words | 5 Pages
• ## All Stoichiometry Essays

• Lab Stoichiometry - 671 Words
John Smith 3/4/13 B-3 Stoichiometry Relationships in Reactions Lab Purpose: To compare the experimental mass of a product of a chemical reaction with the mass predicted for that product by calculation. Materials: * Balance * Evaporating Dish * Pipette * Iron Ring * Scoopula * Goggles * Apron * Burner * Ring Stand * Watch glass * Wire Gauze * Test Tube * NaHCO * 6M HCl Important Info: The reaction you will be working with...
671 Words | 3 Pages
• Stoichiometry-problems - 1583 Words
moles-stoichiometry-practice-problems Now you're ready to use what you know about conversion factors to solve some stoichiometric problems in chemistry. Almost all stoichiometric problems can be solved in just four simple steps: 1.Balance the equation. 2.Convert units of a given substance to moles. 3.Using the mole ratio, calculate the moles of substance yielded by the reaction. 4.Convert moles of wanted substance to desired units. These "simple" steps probably look complicated at...
1,583 Words | 7 Pages
• Stoichiometry Lab - 317 Words
Stoichiometry Lab Name Questions A. From your balanced equation, what is the theoretical yield of your product? Theoretical yield of the CaCO3 is expected to be .69g. B. According to your data table, what is the actual yield of the product? The mass of the filter paper was 1.1g, and the total mass of the filter paper when dried with the CaCO3 was 1.8 total. Thus the actual yield of the product was .70g. C. What is the percent yield? Percentage yield is actual yield over the...
317 Words | 2 Pages
• Stoichiometry Lab - 551 Words
PR OCEDURE Before beginning, set up a data table similar to the Data Table: Experiment Results in the Lab Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the...
551 Words | 2 Pages
• Stoichiometry of a Precipitation Reaction - 1228 Words
﻿Experiment 3: Stoichiometry of a Precipitation Reaction Abstract: In this experiment the objectives were to try and predict the amount of product that was produced in the precipitation reaction of calcium carbonate by using stoichiometry. Then learn how to figure out the actual yield, theoretical yield and percent yield of the experiment. Experiment and Observation: The first step in the experiment was to weigh 1g of CaCl2 +2 H2O, then pour it into the...
1,228 Words | 4 Pages
• Stoichiometry Design Experiment - 291 Words
Chemistry Lab Report Stoichiometry Design Experiment Percentage Yield of Calcium Carbonate and HCl I. Background Information When marble chips and hydrochloric acid are added together, they form sodium chloride, water, and carbon dioxide. This reaction can be displayed by the balanced equation below; CaCO3 (s) + HCl (l) NaCl(s) + H2O(l) + CO2 (g) As the carbon dioxide is formed, it will leave the open beaker as a gas. This will result in a loss of mass. The mass change can then be...
291 Words | 2 Pages
• Stoichiometry of a Precipitation Reaction - 567 Words
|| || Data Tables: Step 3: Show the calculation of the needed amount of Na2CO3 Convert 1.0g of CaCl2-.2H2O to moles of CaCl2-.2H2O 1.0g x 1 mole CaCl2-.2H2O 147.0 g CaCl2-.2H2O = 0.00680 moles CaCl2-.2H2O The mole ratio is 1:1 Hence if we have 0.00680 moles of CaCl2-.2H2O we will as well need 0.00680 moles of Na-2CO3 Convert moles of Na-2CO3 to grams of Na2CO3 = 0.00680 moles Na-2CO3 x 105.99g Na-2CO3 1...
567 Words | 3 Pages
• Stoichiometry of a Precipitation Reaction| - 578 Words
.6Name: Danielle Hall|Date: 10.15.2012| Exp 9: Stoichiometry of a Precipitation Reaction|Lab Section: | Data Tables: Step 3: Show the calculation of the needed amount of Na2CO3 CaCl2.H2O(aq)= m/M =1/147 =0.0068 mol CaCO3(s)=0.0068*1/1 =0.0068 mol CaCO3(s)= CaCO3 (s)= CaCO3 mol *CaCO3 g =0.0068 mol*100.01 g =.68 g Step 4: Mass of weighing dish _0.6___g Mass of weighing dish and Na2CO3 __0.72__g Net mass of the Na2CO3 ___0.12_g Step 6: Mass of filter...
578 Words | 3 Pages
• Stoichiometry of a Precipitation Reaction - 555 Words
Stoichiometry of a Precipitation Reaction Purpose: The purpose of this lab is to calculate the theoretical, actual, and percent yield of the product from a precipitation reaction. Also, to learn concepts of solubility and the formation of a precipitate. Procedure: Weigh out your 1.0g of CaCl2-2H20 and put it into the 100mL beaker, Add your 25mL of distilled water and stir to form the calcium chloride solution. Next, use stoichiometry to determine how much Na2CO3 and put it into a small...
555 Words | 2 Pages
• Chapter 3 Stoichiometry - 2090 Words
Chapter 4 — Intro—1 1 CHAPTER 3 Topic Scopes: Stoichiometry and Solution Concentration • Molarity, molality, parts per million & percentage (w/w, w/v and v/v) • Stoichiometry calculation • Limiting reactant • Theoretical yield, actual yield and percentage yield 1 2 Mole Concept No. of Moles = Molarity (M) • Molarity (molar concentration) is the number of moles of a solute that is contained in 1 liter of solution Mass (g) molar mass (g/mol) No. of Moles = Molarity (mol/L)  volume (L)...
2,090 Words | 23 Pages
• Stoichiometry and Limiting Reagent - 1141 Words
Stoichiometry and Limiting Reagents Theodore A. Bieniosek I. Purpose and Theory The purpose of the experiment is to study and apply the processes of stoichiometric calculation on a controlled chemical reaction. We will be adding variable amounts of reactants in a chemical reaction in order to demonstrate the effect of limiting reagents. Based on the volumes of the reactants, and their respective molarities, we can calculate the theoretical yield of the reaction and compare it to...
1,141 Words | 5 Pages
• Stoichiometry Study Guide - 262 Words
﻿Honors Chemistry Name: _____________________ Study Guide – Unit 8: Stoichiometry Vocabulary – Give definitions and examples where applicable 1. Product 2. Reactant / Reagent 3. Theoretical Yield 4. Actual Yield 5. Percent Yield 6. Excess Reagent 7. Limiting Reagent 8. Law of Conservation of Matter Short Answer – explain the following: 9. What is conserved in every balanced equation (multiple answers)? 10. What determines the mole ratio in a balanced equation? 11. What is the proper...
262 Words | 2 Pages
• Lab 3 Stoichiometry Precipitation
The calculations completed for this experiment include determining the amount of Na2CO3 needed to do a full reaction. This was calculated through stoichiometry calculations: Molar mass was first calculated for CaCl2*2H2O Ca = 40.078g Cl2 = 35.453g*2 = 70.906g 2H2 = 1.00794g*4 = 4.03176g 2O = 15.9994g*2 = 31.9988g 40.078g + 70.906g + 4.03176g + 31.9988g = 147.01456g or 147.0 g CaCl2 1g CaCl2 * 2H2O x (1 mol CaCl2 *2H2O/147g CaCl2 *2H2O) = 0.0068 mol of CaCl2*2H2O Molar mass...
877 Words | 4 Pages
• Stoichiometry of Precipitation Reaction - 1012 Words
Stoichiometry of a Precipitation Reaction March 20,2013 Amber McCollum Introduction Stoichiometry is a branch of chemistry that deals with the quantitative relationships that exist among the reactants and products in chemical reactions To predict the amount of product produced in a precipitation reaction using stoichiometry, accurately measure the reactants and products of the reaction, determine the actual yield vs. the theoretical yield and to calculate the percent yield. The...
1,012 Words | 4 Pages
• Stoichiometry of a Precipitation Reaction - 1470 Words
Experiment 3: Stoichiometry of a Precipitation Reaction Abstract: In this experiment, the objective is to use Stoichiometry to predict the amount of product produced in a precipitation reaction. We received working knowledge of how to accurately measure reactants and products of the reaction. We then are able to use the data that we recorded to make assessments of the actual yield opposed to the theoretical yield. When we calculated the percent yield we are...
1,470 Words | 5 Pages
• Stoichiometry Questions and Answers - 779 Words
﻿ Modbury High School SACE Stage 1 Chemistry Topic 5 Mole Concept and Stoichiometry Assignment 5: Volumetric analysis (titrations), stoichiometry SOLUTIONS Note: Write answers neatly and legibly in your exercise book or on pad paper. ALWAYS include a title and name for your work and clearly indicate each answer. 1. a) 23.08 and 23.00 mL are concordant titre values. Average titre = (23.08 + 23.00) = 23.04 mL 2 b)...
779 Words | 6 Pages
• Stoichiometry of a Precipitation Reaction - 435 Words
Name: Brian James|Date:3/10/13| Exp 9: Stoichiometry of a Precipitation Reaction|Lab Section: 73426| Data Tables: Step 3: Show the calculation of the needed amount of Na2CO3 CaCl2.H2O(aq)= m/M =1/147 =0.0068 mol CaCO3(s)=0.0068*1/1 =0.0068 mol CaCO3(s)= CaCO3 (s)= CaCO3 mol *CaCO3 g =0.0068 mol*100.01 g =.68 g Step 4: Mass of weighing dish _0.6_g Mass of weighing dish and Na2CO3 .72_g Net mass of the Na2CO3 .12_g Step 6: Mass of filter...
435 Words | 2 Pages
• Stoichiometry Lab Report - 715 Words
Stoichiometry I. Introduction/ Purpose: Stoichiometry is the study of the quantitative, or measurable, relationships that exist in chemical formulas and also chemical reactions. The calculations of a stoichiometry problem depend upon balanced chemical equations. The coefficients of the balanced equations indicate the molar ratio of the reactants and products taking part in the reaction. There are three major categories of stoichiometry problems such as mass-mass, mass-volume, and...
715 Words | 3 Pages
• Basic Stoichiometry Phet Lab
Basic Stoichiometry PhET Lab rvsd 2/2011 Let's make some sandviches! _ Introduction: When we bake/cook something, we use a specific amount of each ingredient. Imagine if you made a batch of cookies and used way too many eggs, or not enough sugar. YUCK! In chemistry, reactions proceed with very specific recipes. The study of these recipes is stoichiometry. When the reactants are present in the correct amounts, the reaction will produce products. What happens if there are more or less of...
1,190 Words | 8 Pages
• My Experiment in Stoichiometry - 1315 Words
Name: Angelica G. Morales Course: BSENVISCI- II Date performed: February 20, 2013 Date submitted: February 27, 2013 EXPERIMENT NO. 5 STOICHIOMETRY Stoichiometry From Wikipedia, the free encyclopedia Jump to: navigation, search Stoichiometry (pron.: /ˌstɔɪkiˈɒmɨtri/) is a branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions. In a balanced chemical reaction, the relations among quantities of reactants and products typically form a...
1,315 Words | 4 Pages
• Stoichiometry and Limiting Reagents - 299 Words
After concluding the experiment, I learned that the products reaction can be created in precise amounts when the masses of the products can be measured to exact standards. Further, I learned more about the molarity of aqueous solutions, and how that quantity, along with the volume of the solution, can be manipulated to find the exact number of moles in a given volume. In this case, experimenters were given aqueous solutions of NaOH and CaCl2 in known molarities and then had them react with one...
299 Words | 1 Page
• Stoichiometry of a Precipitation Reaction - 432 Words
Title: Stoichiometry of a Precipitation Reaction Purpose: The purpose is to predict the amount of precipitation using stoichiometry. Another purpose is to measure and calculate percentage yield. Procedure: 1. Weigh out 1.0g of CaCl2*2H2O and put it into a 100mL beaker. 2. Add 25mL of distilled water and stir. 3. Using stoichiometry to determine how much Na2CO3 is needed for a full reaction. 4. Weigh the calculated amount and put it in a small paper cup. Add 25mL distilled water and...
432 Words | 2 Pages
• Stoichiometry of a Precipitation Reaction - 347 Words
LAB REPORT 7 – STOICHIOMETRY OF A PRECIPITATION REACTION No credit will be given for this lab report if the Data section is not completely filled out. NOTE: This experiment may take several days to complete. OBJECTIVE 1. Predict the amount of product produced in a precipitation reaction using stoichiometry 2. Accurately measure the reactants and products of the reaction 3. Determine the actual and theoretical yield 4. Calculate percent yield PROCEDURE Please...
347 Words | 2 Pages
• Stoichiometry of a Precipitation Reaction - 1593 Words
﻿Experiment 3: Stoichiometry of a Precipitation Reaction Name: Alexandria Gfeller Lab Partners: None Date of Experiment: June 29th 2014 Location: My House Course Number: CHE112 Abstract: In this experiment Stoichiometry of a Precipitation Reaction, the main objectives were to use stoichiometry to calculate the theoretical yield of CaCO3 that precipitates from the reaction between Calcium chloride, Dihydrate and Sodium carbonate, and then...
1,593 Words | 5 Pages
• Chemistry Stoichiometry Lab Essay Example
Teresa Meng, Niharika Palakodety, Victoria Wang, and Grace Xiong Mrs. Rhonda Smith Honors Chemistry Period 4 13 May 2012 Redox Reactions Lab Report We wished to investigate the oxidation number of a metal that would form aqueous ions when reacted with an aqueous nitrate salt. For this purpose, we chose to investigate the reaction of solid copper metal, in the form of a wire, with aqueous silver nitrate. Before we began the lab, we hypothesized that when silver nitrate, AgNO3, reacts...
1,162 Words | 4 Pages
• Stoichiometry Lab: Data Collection and Processing
IB CHEMISTRY Stoichiometry Lab Data Collection and Processing Item | Mass | Small beaker (100 mL) | 47.0 grams | Large beaker (150 mL) | 82.4 grams | Mass of filter paper | 0.50 grams | Mass of coffee filter | 1.00 gram | 150mL beaker + 20mL water + lead nitrate solution | 96.1 grams | 100mL beaker + 20mL water + sodium carbonate solution | 64.2 grams | Watch glass | 32.2 grams | Precipitate + filter paper + coffee filter | 2.20 grams | Precipitate + 150mL + coffee...
1,015 Words | 4 Pages
• Study Guide Stoichiometry Student Editable
﻿Stoichiometry Section 11.1 What is stoichiometry? In your textbook, read about stoichiometry and the balanced equation. For each statement below, write true or false. _______true___________ 1. The study of the quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry. ________true__________ 2. Stoichiometry is based on the law of conservation of mass. _________false_________ 3. In any chemical reaction,...
1,503 Words | 8 Pages
• Experiment 6 Stoichiometry Of A Precipitation Reaction
﻿ Purpose: In this experiment I will predict the amount of product produced in a precipitation reaction using stoichiometry by accurately measuring the reactants and products of the reaction. I will also determine the actual yield vs. the theoretical yield by calculating the percent yield. Materials: 1 Distilled water 1 Paper towels 1 Small paper cup 1 Coffee cup or mug 1 Beaker, 100 mL, glass 1 Funnel 1 Cylinder, 25 mL 1 Goggles-Safety 1 Scale-Digital-500g 1 Weighing boat, Plastic 1 CaCl2·2...
810 Words | 4 Pages
• Exp 10 Stoichiometry Lab Reportnew
﻿Lab Report for Experiment #10 Stoichiometry of a Precipitation Reaction Student's Name ____________________ Date of Experiment ___________ Date Report Submitted _________________ Title: Purpose: Instructor Changes: Weigh out about 1.7 g of CaCl2·2H2O and record your mass to +/- 0.1 g (for example 1.6 g, 1.7 g, or 1.8 g). We have made this change so that you will have 2 sig figs in subsequent calculations. Have you made any changes to the procedure? Please explain: Data Tables and...
505 Words | 3 Pages
• Copper Iron Stoichiometry Lab Report
Copper-Iron Stoichiometry Lab Report 10/3/12 Abstract: The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate, CuSO4, mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu...
1,807 Words | 6 Pages
• Lab Experiment Stoichiometry of a Precipitation Reaction
Ocean County College Department of Chemistry Stoichiometry of a Precipitation Reaction Submitted by Hendy Zelishovsky Date Submitted: 4/26/2012 Date Performed: 4/25/2012 Lab Section: Chem-180-DL1 Course Instructor: Dr. Cynthia Spencer Purpose...
553 Words | 3 Pages
• Chemistry 1 Stoichiometry Lab Essay Example
Stoichiometry 04/09/12 Chemistry I B Ms. Norton Introduction/Pre-laboratory Assignment: 1. Write out and balance each of the following equations. A. CuSO4 + Fe Cu + FeSO4 B. 3CuSO4 + 2Fe 3Cu + Fe(SO4)3 2. If Iron (III) Sulfate were formed, what mass of Copper would be expected and what is the limiting reagent? C. 2.26 g Cu D. Fe 3. If Iron (II) Sulfate were formed, what mass of Copper would be expected and what is the limiting reagent?...
721 Words | 3 Pages
• chem 11b - 1559 Words
﻿Stoichiometry: Synthesis of Garden Lime Standard: The student will explore the mathematics of chemical formulas and equations. Have you ever wondered why hot dogs are sold in packages of 10, but hotdog buns are sold in packages of 8? This is an example of a ratio. Stoichiometry is the scientific word for ratios of moles. It is the study of the quantitative relationships between reactants and products in a chemical reaction. These relationships are often referred to as mole-to-mole...
1,559 Words | 6 Pages
• Grignard Synthesis of Triphenylmethanol from Benzophenone
Grignard Synthesis of Triphenylmethanol from Benzophenone Purpose: The purpose of this experiment was to synthesize the tertiary alcohol triphenylmethanol from a Grignard reagent, phenyl magnesium bromide. The Grignard reagent was synthesized from bromobenzene and magnesium and then reacted with benzophenone to produce triphenylmethanol. It was important that water be excluded from the reaction, in order to prevent the formation of benzene. The reaction of phenyl magnesium bromide and...
1,972 Words | 8 Pages
• Labpaq Lab 3 Extra Questions Essay Example
Lab 3: Stoichiometry of a Precipitation Reaction NOTE: All photos should be taken so the reading on the electronic balance is readable. Photo 1: filter paper being weighed on electronic balance, along with your student information card. Photo 2: beaker with precipitate slurry in it (after step 5) , along with your student information card Photo 3: dried precipitate/filter paper being weighed on electronic balance, along with your student information card Additional Question...
360 Words | 1 Page
• chem lec - 250 Words
﻿Problem Set Introduction to Stoichiometry Name: ______________________________________________________ Course/Yr/Section: ____________ Date:_____________ Direction: Analyze and solve each problem carefully, write the solution on the space provided. Box your final answer/s. (10pts each) Determine the molar mass of the following: a. Al(NO3)3 b. ZnSO4 c. Ba(C2H3O2)2 d. NaHCO3 CH3COOH Calculate the percentage oxygen in the following compounds: a. Na2CO3 b. BaSO4 c....
250 Words | 0 Page
• Preparation of an Ionic Compound from Aluminum Metal
Preparation of an Ionic Compound from Aluminum Metal October 6, 2010 The purpose of this laboratory project was threefold, in that it presented three main objectives. The first objective was to prepare the ionic compound alum from aluminum powder. The alum was produced from the reduction-oxidation reaction of aluminum with potassium hydroxide and sulfuric acid in water. The second objective was to then analyze the alum product for water crystallization; that is, to determine the value of x...
1,260 Words | 4 Pages
• Mass and Chemical Reactions Lab
Mass Relationships in a Chemical Reaction Lab Introduction: This lab focused on mass relationships within a chemical reaction. To understand this lab first, it is necessary to understand the reaction that is going on in the reaction. The Copper (II) chloride hydrate reacts with Aluminum to produce Aluminum chloride, copper, and water. Theoretical yield and various other forms of yield must be understood too, theoretical yield is what amount of the product you should get theoretically according...
745 Words | 3 Pages
• Friedel – Crafts Acylation: Synthesis of 4-Methoxyacetophenone
Introduction Friedel-Crafts acylation of anisole with acetic anhydride was used in this experiement to synthesize 4-methoxyacetophenone with the use of a reflux apparatus. Friedel-Crafts reactions can be done by alkylation, which involves mixing an alkyl or acyl halide with a Lewis acid, or acylation, which is done with acid chlorides or anhydrides(Lefevre). Acylation was used because it does not have as many disadvantages aklyations reactions have such as polyalkylation, second electrophilic...
837 Words | 3 Pages
• Lab 3 Requirements - 280 Words
This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Observations When using 1.0 g of CaCl2·2H2O, stoichiometric calculations should give the following results:...
280 Words | 1 Page
• 4.08 Percent Yield - 231 Words
Create a data table to record your data from the procedure. Be sure that the data table is neat and organized and that all measurements have the correct significant figures and units. (3 points) Events Masses Empty Dish 24.35 g Dish with NaHCO3 37.06 g Dish with NaHCO3 and HCI 40.06 g Dish after burning 31.52 g Write the complete balanced equation for the reaction that occurred in this lab. Hint: H2CO3 is not ...
231 Words | 2 Pages
• Chemistry 30s Exam Grade 11
GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key IInstructions The final examination will be weighted as follows Modules 1–3 Modules 4–6 The format of the examination will be as follows: Part A: Fill-in-the-Blanks Part B: Multiple Choice Part C: Short Answer Total Marks Include units with all answers as required. Useful Information You will need the following in order to complete this examination: n n n n...
5,178 Words | 25 Pages
• Study guide for Exam 3 Chem 1212 Fall 2
﻿Study guide for exam 3 Chem 1212 Fall 2014 (chapters 3,4, 14,15) Chapter 3 Nomenclature ionic compounds, molecular compounds, simple organic compounds, hydrates, acids Know the names and charges of the polyatomic ions Calculation molecular weight mw Molar mass of compound Number particles = NA x n Mass % Determination of empirical formula and molecular formula Combustion analysis Balancing equations Chapter 4 Limiting reactant Mole to mole conversion from reaction stoichiometry Theoretical...
381 Words | 2 Pages
• Multistep Synthesis - 669 Words
Results: Limiting Reactant: Eq 1 Limiting reactant = Benzoin Theoretical yield of Benzil: Eq 2 Theoretical Yield Benzil | 0.296 g | Mass of Crude Benzil | 0.188 g | Mass of Final Benzil | 0.127 g | % Yield | 43% | % Recovery | 66% | Table 1: Mass of crude/final Benzil, % yield, and % recovery Percent Yield: % Yield = (Final product/Theoretical product) x 100 Eq 3 = (0.127 g/0.296 g) x 100 = 43% yield Percent Recovery...
669 Words | 3 Pages
• Question Set on Chemical Equations
﻿1. Create a data table to record your data from the procedure. Be sure that the data table is neat and organized and that all measurements have the correct significant figures and units. (3 points) Mass (grams) Empty Petri Dish 24.35 g Petri Dish with NaHCO3 added 37.06 g Petri Dish after Reaction is Completed 40.06 g Petri Dish After H2O is Evaporated 31.52 g 2. Write the complete balanced equation for the reaction that occurred in this lab. Hint: H2CO3 is not a final product of the...
351 Words | 2 Pages
• Analysing the Data Created By Copper Displacing Silver in a Silver Nitrate Solution
ANALYSING THE DATA CREATED BY COPPER DISPLACING SILVER IN A SILVER NITRATE SOLUTION PURPOSE This lab was done to achieve many things, such as creating the properly balanced chemical equation using mol ratios and to confirm and apply the principles of stoichiometry in a real situation with collected data. MATERIALS Copper wire Scale Clean dry beaker 0.75g (approx.) silver nitrate 100mL (approx.) water Glass rod (stirring) Filter paper Distilled water Incubator Note: The watch...
1,011 Words | 6 Pages
• Mass Relationships in a Chemical Reaction
Mass Relationships in a Chemical Reaction – Lab Christian Lecce Mr. Ribarich Wednesday, February 20st, 2013 Purpose To determine the mass of copper formed when excess aluminum is reacted with a given mass of a copper salt (Copper Chloride dihydrate), and the mole-to-mole ratio between the reactant and the product of a chemical reaction. Apparatus * 150ml beaker * Stirring rod * Ruler * Hotplate * Tweezers * 50ml graduated cylinder Materials *...
720 Words | 5 Pages
• Student - 767 Words
Lead (II) Iodide Synthesis and Percent Yield NAME:__________________________________________________ PERIOD:______ Prelab 20.0 mL of 0.150 M potassium iodide and 10.0 mL of 0.200 M lead (II) nitrate are mixed together. 1. Write the net ionic equation describing the reaction. 2. Calculate the theoretical yield. Show calculations. 3. a) If a student obtains 0.890 g of lead(II) iodide, calculate the percent yield? Show calculations....
767 Words | 4 Pages
• The Melting Point Analysis of Crude and Recrystallized Acetaminophen Synthesized from P-Aminophenol and Acetic Anhydride
Abstract Acetic Anhydride and p-Aminophenol were heated in a vial attached to an air condenser to synthesize crude acetaminophen, resulting in 0.097 grams (47.48% yield). The crude acetaminophen was then recrystallized in a solvent of water and methanol over heat resulting in 0.082 grams (39.61% yield) of pure acetaminophen. Melting points of both crude and pure acetaminophen were taken, and found to be 165.9 - 170.9°C and 168.2 - 171.5°C, respectively. The literature melting point of...
1,087 Words | 4 Pages
• Preparation of Alum - 1069 Words
﻿DEPARTMENT OF PURE AND APPLIED CHEMISTRY Visayas State University Visca, Baybay City, Leyte Name: Alecsa May S. Celaya BS-Chemistry 3 Date Submitted: December 19, 2014 Lab. Schedule: MW 2:00 – 5:00 pm Rating: Group No. 11 Experiment No. 5 Preparation of KAl(SO4)2•12H2O (Alum) OBJECTIVES This experiment aimed to: prepare KAl(SO4)2•12H2O, commonly referred to as alum, from aluminum metal from a canned soft drink, and determine the mass of the alum collected and its percent...
1,069 Words | 4 Pages
• Limiting Reagents And Percentage Yield Worksheet Answers
﻿Limiting Reagents and Percentage Yield Worksheet 1. Consider the reaction I2O5(g) + 5 CO(g) -------> 5 CO2(g) + I2(g) a) 80.0 grams of iodine(V) oxide, I2O5, reacts with 28.0 grams of carbon monoxide, CO. Determine the mass of iodine I2, which could be produced? 80 g I2O5 1 mol I2O5 1 mol I2 1 333.8 g I2O5 1 mol I2O5 28 g CO 1 mol CO 1 mol I2 253.8 g I2 1 28 g CO 5 mol CO 1 mol I2 b) If, in the above situation, only 0.160 moles, of iodine, I2 was...
1,361 Words | 10 Pages
• Gasss - 273 Words
5.04H: Gas Stoichiometry Lab Worksheet Name: _________________________ Data and Observations: Present all relevant data in a data table below. Include an observations section for any observations that you made during the lab. (5 points) |Data Table | |Mass of magnesium strip (grams) | | |Volume of gas collected (mL) | | |Barometric pressure (atm)...
273 Words | 2 Pages
• Percent Yeild Lab Essay Example
| Percent Yield Lab | | | | 4/20/2012 | Mrs.Sardella Per4 Matt , Kait Mrs.Sardella Per4 Matt , Kait | Introduction *Limiting Reactant: A reactant that is completely consumed during a chemical reaction, limiting the amount of product that is produced. *Excess Reactant: A reactant that remains after a reaction is over. *Theoretical Yield: The amount of product that is predicted by stoichiometric calculations *Actual Yield: The amount of product that is...
1,173 Words | 5 Pages
• Indigo Essay Example - 2263 Words
Indigo Synthesis Author: Carolina Morales Group #1 Lab Partners: Jennifer Capeloto, Samantha Hoffman and Adriana Garibay Instructor: Saehan Park Chem. 152, Section 43 Date Work Performed: February 10, 2010 Date Work Submitted: February 24, 2010 Abstract: The percent yield of the color Indigo that is the color of blue jeans for the three trials was determined to be 13.50%, 15.30% and 14.80%. A series of experiments were performed to a cloth dye comparison. The...
2,263 Words | 9 Pages
• Determining the limiting reactant and the percent yield i a precipitation reaction
Determining the Limiting Reactant and Percent Yield in a Precipitate Reaction (SMG 6D) AP Chemistry One example of a double replacement (metathesis) reaction is the mixing of two solutions resulting in the formation of a precipitate. In solution chemistry, the term precipitate is used to describe a solid that forms when a positive ion (cation) and a negative ion (anion) are strongly attracted to one another. In this experiment, a precipitation reaction will be studied....
1,310 Words | 5 Pages
• Experiment #8: Limiting Reactant
Experiment #8: Limiting Reactant Abstract In chemical reactions, the significance of knowing the limiting reactant is high. In order to increase the percent yield of product, increasing the limiting reactant, possibly, is the most effective. In this experiment we were able to calculate limiting reactants from the reaction of CaCl2. 2H2O + K2C2O4.H2O(aq). As a group, we obtained our salt mixture of calcium chloride and potassium oxalate, and weighed the mixture. We were able to make an...
1,743 Words | 6 Pages
• Copper Reactions - 288 Words
Copper Reactions Rodney Jay C. Ridao Florencio Louis Pascual Relao De La Salle University- Dasmariñas Dasmariñas Cavite Philippines ABSTRACT The Copper Reactions experiment was demonstrate by adding the reagents like 16M HNO3, Distilled water, 6M NaOH, 6M H2SO4, Acetone, Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagent were being added. It was also demonstrated to practice the common...
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• Limiting And Excess - 198 Words
﻿QUIZ A CHEMISTRY 20 Limiting and Excess Stoichiometry 1. Adipic acid, H2C6H8O4, is a raw material used for the production of nylon. It is made commercially by a controlled reaction between cyclohexane, C6H12, and O2: 2C6H12 + 5O2  2H2C6H8O4 + 2H2O (a) Assume that you carry out this reaction starting with 25.0 g of cyclohexane and 25.0 g of O2 (g). What is the theoretical yield of adipic acid? (b) If you obtain 33.5 g of adipic acid from your reaction, what is the percent yield of adipic...
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• Chemistry - 417 Words
Stoichiometry • Calculations involving quantities of consumed reactants and formed products based on a BALANCED chemical equation. Mass Molar Mass Mole Coeff Bal Eqn Mole Molar Mass Mass Example 2 • The Haber Process involves reacting gaseous nitrogen and gaseous hydrogen to form ammonia. Determine the mass in grams of hydrogen gas required to form 1.00 x 103 g ammonia. Your Turn 2 • If you react 52.9 g of potassium chlorate (KClO3) with excess...
417 Words | 4 Pages
• Aldol - 1634 Words
Aldol Condensation: Synthesis of Dibenzalacetone Aldol Condensation: Synthesis of Dibenzalacetone Leah Monroe May 15, 2003 Organic Chemistry Lab II Experiment performed on May 6 and 8, 2003 Abstract: The purpose of this experiment was to synthesize dibenzalacetone via an aldol condensation reaction between acetone and benzaldehyde. This was done by mixing the two reactants with NaOH and ethanol, then allowing the reaction to sit for thirty minutes. The crystals were then washed with...
1,634 Words | 10 Pages
• Lab Repot of Decomposition Reaction Between Iron and Copper (II) Chloride
Introduction When iron is mixed to Copper (Ⅱ) Chloride; the product will be copper and iron chloride. However, in this experiment, we do not have the information of the oxidation number for iron nails. There are 2 different oxidation numbers for iron; that are 2 or 3. We will need to check each of the equations to find out the moles of each element in the equation. Then we can compare the ratio between the mole and the mass of iron and copper; that will be measured during the experiment....
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• Chemistry 2202 Final Review
Chemistry 2202 Review Final Exam Chapter 2: The Mole 1. Isotope – atoms of an element that have the same number of protons but different numbers of neutrons. Ex. The three forms of oxygen are called oxygen-16, oxygen-17, and oxygen-18. They all have 8 electrons and are written as 16/8 O (8 protons + 8 neutrons), 17/8 O (8 protons + 9 neutrons), and 18/8 O (8 protons + 10 neutrons). 2. 3. Mass Number – the sum of the protons and neutrons in the nucleus of one atom of a...
1,725 Words | 7 Pages
• Sythesizing Isopentyl Acetate by the Fischer Esterification Essay Example
Abstract: The purpose of this experiment was to synthesize isopentyl acetate via an esterification reaction between acetic acid and isopentyl alcohol, using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate, as well as with water, then dried with anhydrous sodium sulfate. The product was then distilled using a Hickman still and characterized using infrared spectroscopy. The percent yield of isopentyl acetate was 61.52%. This may have been low due to...
1,240 Words | 4 Pages
• Percent Yield of Calcium Carbonate
﻿SCH 3U0 May 7th 2013 Percent Yield of Calcium Carbonate Introduction: The purpose of this experiment is to examine the percent yield of a precipitate in a double displacement reaction. A solution of calcium citrate and sodium carbonate were mixed together, then the products were filtered out as so only the precipitate remained. The filtered paper was then dried and the mass of the precipitate in the experiment divided by the theoretical mass of the precipitate from the calculated gave...
1,338 Words | 6 Pages
• Bromination of Acetanilide - 547 Words
Bromination of Acetanilide Objective: The objective of this experiment was to use melting point and NMR to determine which of two isomers, ortho or para, would most likely form after brominating Acetanilide through electrophilic aromatic substitution. Procedure/Observations: 1. Weigh out ~280 mg of acetanilide in a 10 mL r.b. flask with a stir bar. 2. Then, add 2.0 mL of glacial acetic acid using a calibrated Pasteur pipet. 3. Stir the mixture until all of the acetanilide has...
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• Limiting Reactant Lab - 397 Words
Introduction: During this lab, we found the excess reactant and limiting reactant between Aluminum and Copper (ll) Chloride. Using stoichiometry, we were able to make predictions. Through the reaction 2Al + 2CuCl₂ → 3Cu + 2AlCl₃ we carried out this experiment and determined that the limiting reactant was CuCl₂ and that the aluminum was in excess. We also determined the percentage yield of copper. Purpose: The purpose of this experiment was to determine the limiting reactant and percentage...
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• yield - 415 Words
﻿Yield of CuCl2.2DMSO Formula weight (Mr) of CuCl2 = 63.55 + (35.45 x 2) =134.45g/mol Formula weight of product CuCl2.2DMSO = 134.45 + 2[16 + 32.06 + (12.01 x 2) + (1.0079 x 6)] = 290.704g/mol Mass of CuCl2= 0.850g Equation for reaction CuCl2 + 2DMSO -> CuCl22DMSO Mole ratio between CuCl2 and CuCl22DMSO = 1:1 Mole of CuCl2 = Mass/ Mr = 0.850/134.45 = 0.00632 moles Since the ratio between CuCl2 and CuCl22DMSO = 1:1, mole of CuCl2DMSO is also 0.0063 moles. To find theoretical yield of...
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• Friedel Crafts Alkylation Essay Example
Friedel-Crafts Alkylation Reaction Friedel-Crafts Alkylation Reaction Preparation of 1, 4-Di-t-butyl-2, 5-dimethoxybenzene Microscale Experiment Leah Monroe April 8, 2003 Organic Chemistry Lab II Experiment performed on March 20 and 25, 2003 Lab Partners (NMR only): Shannon Land and Jamie Yeadon Abstract: In this experiment, 1,4-dimethoxybenzene reacted with t-butyl alcohol to form 1, 4-Di-t-butyl-2, 5  dimethoxybenzene via a Friedel-Crafts Alkylation mechanism. A small amount of...
1,874 Words | 7 Pages
• Copper in Silver Nitrate Lab
Copper in Silver Nitrate Lab: Making Silver Sabrina Kate S. Carranza – Chemistry Hour 6 I. Purpose: The purpose of this experiment is to distinguish the relationships between reactants and products, in addition to expanding on concepts such as single displacement reactions, mole ratio values, moles to mass, theoretical yields, limiting reactants, excess, stoichiometric relationships and percentage errors. II. Hypothesis: /3 -If the copper metal is submerged in the silver nitrate...
1,020 Words | 4 Pages
• Determining the Limiting Reactant and Percent Yield in a Precipitation Reaction Essay Example
﻿Determining the Limiting Reactant and Percent Yield in a Precipitation Reaction Objectives: Observe the reaction between solutions of sodium carbonate and calcium chloride. Determine which of the reactants is the limiting reactant and which is the excess reactant. Determine the theoretical mass of precipitate that should form. Compare the actual mass with the theoretical mass of precipitate and calculate the percent yield. Materials: Balance 0.70 M sodium carbonate solution,...
800 Words | 4 Pages
• Preparation of Bromotriphenylmethane - 1271 Words
Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained, it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O....
1,271 Words | 4 Pages
• Lab 3 no name
﻿ Lab #3: Stoichiometry of a Precipitation Reaction October 14, 2014 Abstract: The purpose of the lab, Stoichiometry of a Precipitation Reaction, is to be able to calculate the amount of a second reactant we need to react with the reactant one. You must calculate the amount of the second reactant using stoichiometry to figure out what amount is needed. After the amount is calculated, you then can add it to the first reactant and it will give you a full reaction....
1,348 Words | 5 Pages
• Stereochemistry of Bromine Addition - 428 Words
Chris Holet 7 – 20-12 Steriochemistry of Bromine Addition to trans-Cinnamic Acid Purpose: To carry out the addition of bromine to trans-cinnamic acid and to identify the product from its melting point. Molecular Structures and Chemical Reaction(s): Results and Calculations: Table of reagents Name Density (g/ml) Amount used Amount # moles Bromine (excess) Trans-cinnamic Acid 1.246 g/cm3 0.148g – do conversion Dichloromethane 1,3266 g/cm3 -...
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• Chemistry Lab Write-Up - 879 Words
1 Gram of Blue Vitriol Lab Purpose: To apply stoichiometry to get exactly 1 g of a certain chemical, and realize how stoichiometry works. Blue vitriol is also known as Copper (II) Sulfate. Its chemical formula is CuSO4. The chemical reaction to obtain blue vitriol is H2SO4 + CuO → CuSO4 + H2O There are many hazards with this chemical. If it were to be inhaled, it may cause irritation of the upper respiratory system, nose, and throat. It may also cause nosebleeds and can cause “metal fume...
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• Experiment 9 okiemute - 589 Words
﻿ Name: Exp 9: Stoichiometry of a Precipitation Reaction Data Tables: Step 3: Show the calculation of the needed amount of Na2CO3 CaCl2.H2O(aq)= m/M =1/147 =0.0068 mol CaCO3(s)=0.0068*1/1 =0.0068 mol CaCO3 (s)= CaCO3 mol *CaCO3 g =0.0068 mol*100.01 g =0.68 g Convert moles of Na-2CO3 to grams of Na2CO3 = 0.00680 moles Na-2CO3 x 105.99g Na-2CO3 1 mole Na-2CO3 = 0.72g 0.72g of Na-2CO3 to fully react with 1g of CaCl2-.2H2O Step 4: Mass of...
589 Words | 3 Pages
• Copper Reactions - 1330 Words
------------------------------------------------- ABSTRACT ------------------------------------------------- The copper reaction experiment was demonstrated by adding the reagents like 16M HNO3, Distilled water, 6M NaOH, 6M H2SO4, Acetone, Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagents were being added. It was also demonstrated to practice the common laboratory techniques such as...
1,330 Words | 5 Pages
• Synthesis of Co(Acac)3
Amanda Tran Date of lab: 04/25/05 Date submitted: 05/09/05 Chem 2130-3 Experiment 3: Synthesis of Co(acac-NO2)3 Introduction In this lab, Co(acac·NO2)3 is synthesized using the Co(acac)3 complex produced in Experiment 2. The Co(acac)3 complex is used as a reagent instead of acacH because acacH cannot be directly converted to 3-nitroacetylacetone. Since Co(acac)3 is not stable in HNO3, Cu(NO3)2 and acetic anhydride are used in this reaction to produce the final...
1,062 Words | 4 Pages
• The Analysis of Lead(Ii) Iodide. the Analysis of a Chemical Reaction. Essay Example
Chemistry 211 The Formula of Lead (II) Iodide The Analysis of a Chemical Reaction Introduction This experiment is based upon a discovery made through the isolation of PbI2 using a particular scientific method, which studies ratios of lead to iodine. Precipitation reactions occur when oppositely charged ions attract and form an insoluble ionic solid. This experiment examines the precipitation reaction between lead (II) nitrate, Pb(NO3)2, and potassium iodide, KI. Both are dissolved in water...
814 Words | 3 Pages
• 5. Acylation of Ferrocene Post-Lab Report
Name C.W. Lab Section 1 GTA N.C. Station 30 5. Acylation of Ferrocene Post-lab report Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table and be consistent with significant figures. Results Amounts and units Initial weight of Ferrocene 0.225 g Moles of Ferrocene 1.21 * 10 ^ -3 mol Initial volume of acetic anhydride 1.00 mL Moles of acetic anhydride...
350 Words | 2 Pages
• Multistep Synthesis of Benzilic Acid Essay Example
Abstract: The objective of the experiment was to prepare Benzilic acid by multistep synthesis starting with benzaldehyde. In this setup however, product of the first step, Benzoin, is provided thereby omitting the first step involving the conversion of benzaldehyde. For this experiment, the microscale techniques of reflux, crystallization, and melting-point determination were used. Utilizing these techniques a product yield of 93% for benzil and 57% for Benzilic acid was obtained, as well...
2,078 Words | 7 Pages
• Course Notes - 1461 Words
• Mole Concept • Defining moles o 1 mole of molecules has a mass equal to the molecular weight in grams. o examples  1 mole H2O is the number of molecules in 18.015 g H2O  1 mole H2 is the number of molecules in 2.016 g H2. o 1 mole of atoms has a mass equal to the atomic weight in grams. o 1 mole of particles = 6.02214 x 1023 particles for any substance!  Prove this by converting 1 mole to grams to daltons to particles for any substance. • vocabulary o molar mass is the mass of...
1,461 Words | 5 Pages
• FLVS Chemistry 4.08 (Percent Yield)
﻿1. Create a data table to record your data from the procedure. Be sure that the data table is neat and organized and that all measurements have the correct significant figures and units. (3 points) Table of Masses Empty Dish NaHCO HCl+NaCO3 Final (Dish and Salt Product 24.35 (grams) 10.06 (grams) 40.06 (grams) 31.52 (grams) 2. Write the complete balanced equation for the reaction that occurred in this lab. Hint: H2CO3 is not a final product of the double-replacement reaction; it breaks...
302 Words | 2 Pages
• Lab Report - 590 Words
Limiting Reagent and Percent Yield Aim To determine the limiting reagent between the reaction of lead (II) nitrate and potassium iodide. To determine the percent yield of lead (II) iodide. Date Started: 13/4/12. Finished: 19/4/12. Data collection and processing Measurements: * Amount of distilled water: 75.0ml ± 0.5ml. * Mass of watch glass: 31.65g ± 0.01g. * Mass of watch glass + potassium iodide: 32.45g ± 0.01g. * Mass of potassium iodide: 0.8g ± 0.02g. * Mass of...
590 Words | 2 Pages
• Benzaldehyde - 340 Words
Thiamine-Catalyzed Benzoin Condensation I.Conclusion Benzoin was produced by reacting 2 mols of benzaldehyde with the catalyst thiamine to form a new C-C bond. A total of 2.626 grams were recovered. There was a 33% recovery of benzoin. The low percent recovery could be due to the purity of the limiting reactant, benzaldehyde. Upon filtration, the mother liquid appeared oily making it more likely that the low recovery was due to the solution ‘oiling out.’ This could be avoided in the future...
340 Words | 2 Pages
• Synthesis of Diphenylacetylene - 396 Words
Anthony Felix 10/27/11 Che12ALR Synthesis of Diphenylacetylene Observation of Results: 1,2-dibromo-1,2-diphenylethane | 0.204g | Diphenylacetylene | 0.087g | Theoretical yield | 0.107g | Percent yield | 81.3% | Melting point range of diphenylacetylene | 57- 60°C | Average melting point | 58.5°C | Average literature melting point | 60.0°C | Percent error of melting point | 2.5% | Calculations: Theoretical yield: Limiting reagent (LR) x M.W. (LR) x Mole to Mole ratio x M.W....
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• Stoichiometric Analysis Formal Lab Report
Stoichiometric Analysis Formal Lab Report I. Purpose- The purpose of this lab is to show stoiciometric reactions and relationships first hand. It also increases our level of understanding about the complicated relationships in chemical reactions and in stoichiometry. II. Introduction- In chemical reactions and formulas there are various relationships between masses of reactants and products. The study of these relationships is called stoichiometry which is derived from the Greek words...
482 Words | 2 Pages
• Limiting Reactants Lab - 639 Words
LMounika Alluri Chemistry HL Block D 19/9/12 LAB REPORT #1 LIMITING REAGENTS INVESTIGATION Aim: To determine the limiting reagent and percent yield of the reaction between potassium iodide with lead (II) nitrate solution. Apparatus required: Safety glasses, funnel stands, watch glass, oven, electronic balance, wash bottle with distilled water, test tubes, 10.0mL 0.50M lead (II) nitrate, 10.0mL 0.30M of potassium iodide solution, two 100.0 mL beakers, funnel, filter paper. Reaction...
639 Words | 3 Pages
• Preparation and Reactivity of Sn1 2-Bromobutane
Preparation and SN1 Reactivity of 2-Bromobutane Paul DeJong Department of Chemistry, Illinois State University, Normal, IL 61790-4160 Submitted: April 4, 2013 Introduction The purpose of part 1 of the lab is to prepare 2-Bromobutane using SN1 reactions. The purpose of part 2 of the lab is to determine the relative reactivity of alkyl halides under SN1 conditions. Results and Discussion The Overall Reaction The Proposed Mechanism Experimental Procedure To...
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• Acetylacetonate Complexes - 1062 Words
Abstract The experiment was conducted, which metals manganese (Mn3+), Cobalt (Co3+) and Copper Cu3+ was prepared and acac complexes where also obtained. Recrystallization was performed of which Mn(acac)3 ,Co(acac)3 and Cu(acac)3 was obtained at percentage yield of 32%, 85.6% & 92% for each of acac’s. TLC was performed which results deduced unknown mixture both contained manganese and cobalt since it had the same Rf vaues. Experiment aims The aim of the experiment was to prepare metal...
1,062 Words | 5 Pages
• my sex experince - 1899 Words
EXPERIMENT 2 Stoichiometry Introduction Stoichiometry is the study of the quantitative relationships in chemical reactions. By studying stoichiometry, you can calculate the quantity of reactants that will be consumed in a chemical reaction, and the amount of product produced. Consider the reaction of vinegar with baking soda. As you may know, this reaction produces carbon dioxide gas which bubbles out of the vinegar. But if you want to know how much gas would be produced from combining a...
1,899 Words | 9 Pages
• Preparation and Sn1 Reactivity of 2-Bromobutane
Preparation and SN1 Reactivity of 2-Bromobutane Whitney Bellido Department of Chemistry, Illinois State University, Normal, IL 61790-4160 Submitted: April 4th, 2013 Introduction The overall goal of this experiment is to understand and be familiar of SN1 reactivity. We also learned how to prepare 2-Bromobutane by learning how to distill and extract this product from its organic layer. Finally, another goal was to specifically understand the relative reactivity of alkyl halides under SN1...
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• Tutorial 3 1 - 350 Words
UNIVERSITI TUNKU ABDUL RAHMAN Centre Course Year/ Trimester Lecturer : : : Centre for Foundation Studies Foundation In Science Year 1 Trimester 1 Unit Code Unit Title Session : : : FHSC1114 Physical Chemistry 2015/05 : Ms. Amelia Chiang, Ms. Azlina Banu, Ms. Farhanah, Ms.Gurpreet, Ms. Jamie, Ms. Lau Mei Chien, Ms. Lily Lee, Ms. Nabilah, Mr. Ng Sweet Kin, Ms. Phang Ying Ning, Ms. Precilla, Ms. Rachel Tham, Ms. Rajalakshmi, Mr. Sivabalan, Ms. Tan Lee Siew Tutorial 3: Chapter 3...
350 Words | 3 Pages
• Silver and Test Tube - 639 Words
﻿Copper-Silver Nitrate Reaction Introduction In this experiment copper wire will be placed in a solution of silver nitrate. This single replacement reaction will produce a blue solution of copper II nitrate and solid silver. By weighing the reactants before the reaction, the mass of silver produced can be predicted. This theoretical yield can be compared to the actual yield of silver. Purpose Students will compare the theoretical mass of silver with the actual mass of silver from the...
639 Words | 3 Pages
• Scale Up Synthesis And Characterization - 704 Words
﻿David Kennedy CHE 235 Lab 10/30/14 Scale-up Synthesis and Characterization of Butyl 2-Cyano-3-(3,5-dichloro-phenyl)-2-propenoate, TSE Project #131 Introduction: This report describes the steps taken to create the scale-up of targeted trisubstituted ethylene, Butyl 2-Cyano-3-(3,5-dichloro-phenyl)-2-propenoate compound (#131), and also the characterization methods deployed to the results. This report serves as a critical step in the overall objective of the project; the synthesis of the...
704 Words | 4 Pages
• Nitration of methyl benzoate Report
﻿Title: Experiment 28: Nitration of Methyl Benzoate Objective: The students will learn to nitrate methyl benzoate through electrophilic aromatic substitution reaction. They will learn the importance of regiochemistry in chemical reactions. They might experience disubstitution through a high temperature. Reactions: Observation: The crystals started to form when added 2 g of crushed ice. The addition of hot methanol dissociated the crystals. The crystals reappeared when cooled down...
595 Words | 4 Pages
• Preparation of Tin Tetraiodide - 789 Words
PREPARATION OF TIN TETRAIODIDE 09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the...
789 Words | 3 Pages