"Standardization Of Hcl Naoh Lab Report" Essays and Research Papers

Standardization Of Hcl Naoh Lab Report

Standardization of Solution and Titration Lab Report, Preparing a Dilute HCl Solution from a Concentrated One Titrating NAOH Solution with HCl Solution (of Known Concentration) Chemistry lab report(by abdazino abdalla) International College Objective preparing a dilute HCl solution from a concentrated one titrating NAOH solution with HCl solution (of known concentration) Procedure Section A: Preparation of 100.0cm3 0.480 mol/dm3 HCl solution a)Determine the volume of the concentrated acid...

Acid, Base, Chlorine 1101  Words | 4  Pages

Open Document

Lab Report on Acid-Base Titration

weight-to-volume percent of acetic acid present in commercial vinegar and the weight-to-volume percent of ammonia present in window cleaners. Acid-base titrations can be conducted using the above samples against standardized aqueous NaOH and standardized aqueous HCl solutions respectively. 2. Introduction: Acetic acid, commonly known as ethanoic acid CH3COOH, is found in commercial vinegar. It is a weak organic acid that gives vinegar its characteristic pungent smell, sour taste and slight acidity...

Acetic acid, Acid, Acid-base titration 448  Words | 3  Pages

Open Document

NaOH Standardization and Titration of an Unknown Organic Acid

NaOH Standardization and Titration of an Unknown Organic Acid Overview: Methods for counting the number of molecules in a sample is a major emphasis of laboratory work. In this experiment we will use the method of titration to count the number of acid molecules in a solution. Measuring mass is a relatively easy procedure to do in the lab (although a balance is expensive). Counting the number of particles requires more effort. Molecular counting can be done by setting an unknown amount of a substance...

Acid, Amperometric titration, Burette 1765  Words | 4  Pages

Open Document

Hcl + Mg Lab Report

Lab Report Background Information: Magnesium is an alkaline earth metal that has the symbol Mg. Magnesium is a fairly strong, silvery-white, light-weight metal (one third lighter than aluminum). In a powder, it heats and ignites when exposed to moisture and burns with a white flame that is harmful to the eyes. It is difficult to ignite in bulk, but once ignited, it is difficult to extinguish. Magnesium Ribbon is a long strip of magnesium metal about 3 millimeters wide and 10 meters long with...

Chlorine, Gastric acid, Hydrochloric acid 815  Words | 3  Pages

Open Document

Preparation & standadization of NaOH & HCL

ABABIO BUAHEN SAMUEL CHEMISTRY ONE REF. NO: 20216815 EXPERIMENT A.1.1.2 THE PREPARATION AND STANDARDIZATION OF NaOH AND HCL SOLUTION AIMS & OBJECTIVES: (1) To gain experience with titration procedure (2) To learn to standardize acid & base solution (3) To carry out the preparation of solution of a desired concentration (4) To carry out the preparation of solutions of desired concentration from more concentrated solution INTRODUCTION: Titration is a convenient quantitative method for accurately...

Chemistry, Concentration, Erlenmeyer flask 806  Words | 4  Pages

Open Document


Standardization of a NaOH Solution with Potassium Hydrogen Phthlate (KHP) Name:________________________________________________________________ Period:_____ Prelab 1. A 0.8234-g sample of "KHP" required 38.76 mL of NaOH for titration to the phenolphthalein endpoint. What is the exact molarity of the NaOH solution? 2. A 25.00-mL aliquot of an unstandardized HCl solution is titrated with the previously standardized NaOH solution from #1 above. If 32.55 mL of NaOH titrant...

Acid, Base, Hydroxide 1337  Words | 5  Pages

Open Document

Lab Report

In the lab they want determine the concentration of a solution. One way that they have to do so is to carrying out analytical procedure known as titration. Introduction Every material and step in the lab is very important. Everything has a purpose in the lab. In this lab they used a lot material. They used 2 50mL burets, buret stand and clamps, Erlenmeyer flask 125mL, Erlenmeyer flask 250mL, wash bottle, distilled water, 10mL graduated cylinder and 10mL volumetric pipette. In this lab they...

Acid, Base, Burette 678  Words | 3  Pages

Open Document

Chemistry Lab Report on standardization of acid and bases

Chemistry Lab Report on standardization of acid and bases. Purpose: To prepare standardize solution of sodium hydroxide and to determine the concentration of unknown sulfuric acid solution. Data and Calculations: This experiment is divided into two parts (Part A and Part B). In the first part of experiment, the standardize solution of sodium hydroxide is prepared by titrating it with base Potassium hydrogen phthalate (KHP). The indicator Phenolphthalein is used to determine that whether titration...

Acetic acid, Acid, Hygroscopy 1631  Words | 5  Pages

Open Document

Chem 1212k Lab Report

Deborah Bell April 17, 2012 Chemistry 1212K Lab Synthesis Report Introduction In this Chemistry Lab the main objective is to perform accurate chemical analysis for the quantity of elements and compounds in a sample. There will be a compound made then synthesized. The methods used were acid-base titrations, redox titrations, gravity filtration, and distillation. General conclusions included Procedures Weight of Crucibles 1. The first experiment is Preparation of a Cobalt Amine...

Acid, Ammonia, Hydrochloric acid 1333  Words | 5  Pages

Open Document

Acids and Alkalis Lab Report

Lab Report Acids and Alkalis: Chemistry of Neutralization and Salt Formation Introduction: An acid is a group of chemicals. Acids are positively charged ions, they are liquid and are solutions of pure compounds in water. If you want to know if something is an acid, you can test it by using litmus paper. Acids will turn litmus paper red, whilst alkalis will turn it blue. Alkalis are negatively charged ions and are usually solid. Aim: To find out how much of different acids is needed to neutralize...

Acid, Ammonia, Base 559  Words | 3  Pages

Open Document

Chemical Equilibrium Lab Report

Chemical Equilibrium Lab Report Aim: The aim of the lab “Chemical Equilibrium” is to observe the effects of changes in concentrations of products and reactants on the position of the equilibrium of given chemical reactions. Background Information: We are going to use our knowledge of the Le Chatelier’s principle in order to observe this experiment. The principle states that the equilibrium will shift in the direction that will minimize the effects of the change. This lab consists of two parts...

Change, Chemical reaction, Chemistry 649  Words | 3  Pages

Open Document

lab report 5

LAB REPORT 5 – OBSERVATIONS OF CHEMICAL CHANGES No credit will be given for this lab report if the Data section is not completely filled out. OBJECTIVES 1. Observe some properties of chemical reactions 2. Associate chemical properties with household products PROCEDURE Please complete the entire experiment as instructed in the lab manual except for any modifications noted below. Fill out the report below, insert your digital photographs into it, and submit it me electronically to the...

Acid, Base, Carbonate 503  Words | 4  Pages

Open Document

Lab report

Acid Base Titration Purpose: The purpose is to calculate the molarity of a NaOH solution by titrating the base with 5mL of standard HCl solution in each trial. By adding the base with unknown molarity to the acid with 0.10M the molarity of NaOH can be calculated. The base, NaOH, helps bring the pH of the acid, HCl, closer to seven, which neutralizes it. When using the buret the amount of NaOH used is able to be determined. Then by writing a balanced chemical equation and using the titration...

Acid, Base, Erlenmeyer flask 979  Words | 7  Pages

Open Document

Hess Law Lab Report

LAB REPORT ON VERIFICATION OF HESS’S LAW Our purpose of doing this lab was to prove the Hess’s law correct. Hess’s law suggests that the enthalpy change of a reaction must be equal to the sum of the enthalpy changes of the related reactions which lead to the original reactions. The following are the reactions at the lab; 1) NaOH ( s) NaOH (aq) 2) NaOH (aq) + HCl (aq) NaCl (aq) + H2O (l) 3) NaOH (s) + HCl (aq) NaCl (aq) + H2O (l) As explained before, Hess’s Law states that the enthalpy...

Energy, Enthalpy, Heat 702  Words | 3  Pages

Open Document

Standardization of Naoh and Hcl

Formula: for NaoH N NaoH = grm KHP / ml NaoH x KHp /1000ml Formula: for HCL (NV) HCL = (NV) NaoH or N HCL V HCL = N NaOH V NaoH N HCL = VNAOH (NNaoH) / VHCL (for more info page 62-63 of the photocopy) KHP = Potassium hydrogen phthalate = KHC8H4O4 = Mw - 204.23 Trial 1: NNaoH = 1grm / 20.6 x 204.23 /1000 = 1grm / 4.21 = 0.24 normal NHCL = 20.6 (0.24) / 39.5 = 4.94 / 39.5 = 0.125 or 0.13 Trial 2: NNaoH = 1grm / 20.8 x 204.23 /1000 ...

Chlorine, Formula, Hydrogen 270  Words | 2  Pages

Open Document

Titration Lab

Lab Report: Titration Lab Prepare a solution of a given concentration; understand titration including acid-base reactions, pH, stoichiometry and molar equivalence. Chemicals and equipment: NaOH pellets close to purity, HCl 3M, phenolphtalein Beckers, flasks, burette, magnetic or manual stir pHmeter Waste management: The waste disposal will be handled through neutralization of your excess reactant to a pH between 4.0 and 10.0 and disposal with abundant rinsing. As a preparation for the...

Acid-base chemistry, Base, Chemistry 873  Words | 3  Pages

Open Document

Volumetric Analysis: Lab Report

3/19/13 CHEM 1211L Lab Report Introduction The purpose of this lab is to use volumetric analysis to determine the concentration of unknown substances. A sodium hydroxide solution is standardized to assist in finding the concentration of an acetic acid. An indicator must be used to pin point the equivalence point, the point in which 1 mole of a substance is equal to 1 mole of another. When that is found, we can determine the concentration. HC2H3O2 (aq) + NaOH (aq) H2O (l) + NaC2H3O2...

Acetic acid, Acid, Base 1177  Words | 5  Pages

Open Document

Lab Report

LAB REPORT FOR EXPERIMENT 3 COPPER CYCLE OLANREWAJU OYINDAMOLA TUESDAY 27TH February 2013 Abstract This experiment is based on copper, to synthesize some copper compound using Copper (II) nitrate solution to obtain copper metal at the end. Changes of copper complexes when various are added and filtering out the precipitate by using Buchner funnel for vacuum filtration .The experiment started with preparation of copper (II) hydroxide and addition of copper oxide then addition of droplets...

Chemistry, Concentration, Copper 839  Words | 4  Pages

Open Document

Lab - Acid-Base Titration

Lab Report # 11 By: Andrew Hoitt CHEM 105 Lab 11/29/2012 Lab # 11 – Acid - Base Titration Introduction: The purpose of this lab is to determine the molarity (M) of an unknown HCl solution. A NaOH solution will be made and its molarity calculated. A sample of the NaOH solution will be titrated against the unknown HCl solution to calculated the volume needed to neutralize it. With these volumes the unknown molarity can be calculated. Theory: Solutions...

Acid, Base, Chemistry 939  Words | 5  Pages

Open Document

Lab Report Identifying Physical And Chemical

 Lab Report: Identifying Physical and Chemical Changes Nelson Science Perspectives 10 section 5.2 Amazing Student September 17, 2012 Mrs. Volkmann SNC 2D Purpose: To collect evidence and then use it to identify physical and chemical changes. Hypothesis: I predict the following: Change 1 will be a chemical change Change 2 will be a chemical change Change 3 will be a physical change Change 4 will be a chemical change Change 5 will be a chemical change Change 6 will be a physical...

Chemical reaction, Chemistry, Chlorine 1071  Words | 5  Pages

Open Document

Acid-Base Titration Lab Report

and Tests: Week 1 1) 600ml of a 0.5M NaOH solution will be needed, 3MNaOH is provided. Determine how much of the 3M NaOH will be needed. 2) Determine how many mls of a 0.5M NaOH solution will be required to titrate 1.2g of potassium hydrogen phthalate to the nolphthalein endpoint. 3) Use bromothymol blue or phenolphthalein. Week 2 1) Determine the molarity of the NaOH prepared from precedent week. 2) Estimate how many mls of NaOH solution will be required to reach the bromothymol...

Chlorine, Hydrochloric acid, PH 794  Words | 3  Pages

Open Document

Reacting Acids and Bases Lab Report

Reacting Acids and Bases Lab Report Introduction Every liquid, except for distilled water, has either acidic or basic traits. An acid is sour tasting, and gives a sharp stinging pain in a cut or wound, and bases taste bitter, and feel slippery. A pH scale is used to determine what traits a liquid has; acidic or basic. The scale focuses on OH- (hydroxide ions) and H+ (hydrogen ions). The scale goes from 0 to 14. 7 is distilled water, as it is directly in the middle; neither acidic or basic. Acids...

Acid, Base, Chlorine 716  Words | 3  Pages

Open Document

Lab Report

Richmonde Zegbe CHM111 Anita Mohan 03-11-2013 Experiment: Chemical reactions, and Equations Materials: 3 mL of copper(II) sulfate solution. 5 mL of 6 M HCl piece of zinc wooden splint test tube Bunsen burner 3 mL of zinc chloride solution. pentahydrate distill water ...

Chemical reaction, Chemistry, Chlorine 629  Words | 3  Pages

Open Document

Standardization of Acid/Base

known accurately. We will first prepare a standard solution of NaOH. One way to prepare a standard solution is to dissolve an accurately massed amount of the substance and dilute it to a measured volume. In this way; the concentration can be calculated exactly. However, it is usually impossible to obtain NaOH of sufficient purity to use it as a primary standard. An indirect method is more practical for obtaining a standard solution of NaOH. We will prepare a solution of an approximate molarity and standardize...

Acid, Chemistry, Concentration 1558  Words | 6  Pages

Open Document

lab and ph

 pH and Chromatography Lab Report Kevin Rivera Biology Mr. Langley 2C 10/7/13 Introduction In this lab, of pH and Chromatography, in the pH aspect of the lab we are trying to figure out the pH level of certain chemicals by writing down of known solutions to find the type of unkown solution using pH standards. In the Chromatography, we are trying to separate the chemicals using water and a piece of paper. Methodology Materials: Safety Goggles pH indicator...

Acid, Base, Chemical substance 543  Words | 4  Pages

Open Document

Lab report: Extraction

Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse, poured solution into sep funnel. Added 15 ml 3 M...

Acid, Acid–base reaction, Alkali 815  Words | 4  Pages

Open Document

7.03 Lab Ph

with an Indicator 1. Fill the 50-milliliter buret with a 0.25 molar NaOH solution. 2. Record volume. 3. Measure out between 20 milliliters and 40 milliliters of the unknown HCl solution. 4. Record volume. 5. The amount of unknown HCl is then added to the 100-milliliter Erlenmeyer flask. 6. Add two drops of the indicator, phenolphthalein, to the acid in the flask. 7. Using the slider on the right hand side, add NaOH to the HCl in the Erlenmeyer flask (This action is known as titrate). Add the...

Chlorine, Erlenmeyer flask, Hydrochloric acid 790  Words | 3  Pages

Open Document

Standardization of NaOH and determination of Molarity of an unknown Acid

Experiment 5- Standardization of NaOH and determination of Molarity of an unknown Acid Objectives 1. Preparation and standardization of a 0.1M NaOH solution 2. To learn the technique of titration 3. Determination of the concentration of an unknown diprotic acid. Introduction Titration can be traced to the origins of volumetric analysis, which began in the late eighteenth century.  Study of analytical chemistry began in France and the first burette was made by Francois Antoine Henri...

Acid, Carbon dioxide, Chemistry 735  Words | 3  Pages

Open Document

Qualitative Lab Report

Tessa Landauer Chemistry 0340 Qualitative Analysis Shaopeng Zhang January 26, 2015 I submit this laboratory report as an original document. I assert that all ideas and discussion of data contained herein is my own work unless otherwise referenced. Tessa Landauer Abstract The goal of the experiment was to isolate and purify the unknown D liquid and solid by using its acidic and basic characteristics in a chemically active extraction then to identify the unknowns by analyzing the physical properties...

Alkyl, Chemistry, Diethyl ether 1707  Words | 9  Pages

Open Document

lab report

CHM1032L pre/post lab instructions Preparation is a key to success in this lab. For this reason, you are required to thoroughly read through the experiment information presented in the lab manual, and complete a pre-lab for each experiment you do. The prelab must be completed prior to the day of the experiment. Each Friday I will ask to see your completed prelab before I allow you to enter the lab. If you have not finished the pre-lab, I will not allow you to enter the lab and you will receive...

Experiment, Laboratory, Logic 1036  Words | 4  Pages

Open Document

Carboxylic Lab Report

acids and esters through their distinctive odors. Carboxylic acids usually have a sour odor that is not distinguishable with any specific scent. Meanwhile, “esters have sweet and pleasant odors often associated with fruits” (Staudt 80). In this lab, solubility in water, acidity, and odors of carboxylic acids will be observed. Also, esters will be produce and odors will be detected from the product. Finally, saponification will be learned. PROCEDURE: Carboxylic Acids and Their Salts: Characteristics...

Acetic acid, Acid, Carboxylic acid 1850  Words | 7  Pages

Open Document

Standardization Chemistry Lab Report

AGRICULTURE AND TECHNOLOGY DEPT: CIVIL ENGINEERING UNIT: CHEMISTRY 1 (SCH 2109) PRACTICAL REPORT EXPT 2: Standardization and Determination of Concentration of Hydrochloric Acid in a Given Solution by ARAKA BRAMWEL MBOGO EN251-0221/2010 TITLE: STANDARDIZATION and DETERMINATION OF THE CONCENTRATION OF HYDROCHLORIC ACID PRESENT IN A GIVEN SOLUTION Aims: To be able to standardize Sodium Hydroxide (NaOH) solution using a standard solution of Oxalic acid. To be able to prepare standard solutions...

Chlorine, Hydrochloric acid, PH 1663  Words | 8  Pages

Open Document

Principles of Chemistry Lab

CHEM 1211 L Principles of Chemistry Lab 16 February 2004 Lab Report 1 Introduction The purpose of this project is to identify an unknown organic acid (X) by conducting various experiments to determine the acid’s unique properties. By determining selected constant properties of the unknown and then comparing these properties to the constant properties of known substances, it is possible to identify an unknown substance. The properties used to identify the unknown must be intensive, or independent...

Acid, Chemistry, Chlorine 1577  Words | 5  Pages

Open Document

Lab Report

* Use and calibration of a pH meter to measure pH. Method The pH meter was calibrated using solutions of pH appropriate to the titration. Volumes of glycine and Tris (0.1M) were made up and acetic acid was titrated against NaOH, Tris against HCl and glycine against NaOH. After each aliquot was ran in from the burette, pH values of the resulting solutions were measured and recorded. Hydrochloric acid was titrated against sodium hydroxide with pH measured in the same way, to give a comparison curve...

Acetic acid, Acid, Acid dissociation constant 1886  Words | 7  Pages

Open Document

chemistry week 6 lab

Chemical Reactions Note: Lab reports are to be completed by each student individually and in their own words Observations: (This part is to be completed in class) Part 1: Physical Change- Heat of Solution for Sodium hydroxide (NaOH) 3.2 grams NaOH Result: Temperature of DI water = ____22.8 °C Temperature after addition of NaOH = ______31.8 °C Part 2: Chemical Change- Reaction between acid and base Result: Temperature of HCl = ___21.4 °C Temperature after addition of pellets of NaOH = ____26.4 °C Part...

Base, Chemical reaction, Energy 505  Words | 4  Pages

Open Document

Lab Report

Formal Lab Report | Chemistry | | Student name: Sara Hattar Grade: 10 ”C” | | Teacher: Christine Ziadat | | | Title: Investigating the effects of changing the concentration of an acid on the rate of reaction between HCl and Magnesium. Aim: In this experiment we are going to see the effects of using three different concentrations of HCl when added to Magnesium metal on the rate of reaction. Hypothesis: If the concentration of the acid increased in reaction between HCl (the acid)...

847  Words | 4  Pages

Open Document

Class Action Lab Report

Sulaiman Alya Abourezk 4/13/12-4/14/12 Class Action Lab Report Purpose: To determine, through observations, the identity of substances produced in a chemical reaction. Materials: Safety Goggles Stirring rod Magnesium ribbon Solid CuSO4•H2O Matches Test tubes Copper metal 3M HCl Red and blue litmus strips 0.1M AgNO3 Zinc metal 0.1M Pb(NO3)2 Test tube holder 0.1M KI Bunsen burner 0.1M Na2NO3 Crucible tongs 1.0M NaOH Water (H2O) 0.1M Ca(NO3)2 50mL beaker 1.0 CuSO4 ...

Catalysis, Chemical reaction, Chemical reactions 1112  Words | 4  Pages

Open Document

Chem Lab Report

various elements and compounds in the unknown, its true identity can be predicted. Chloride, ammonia, and cobalt are three examples of percent compositions determined to help narrow the selection of possible unknowns. Titrations using Na2S2O3 and HCl to determine percent cobalt and ammonia, respectively, are used. Silver nitrate is used to precipitate the chloride ions in the unknown, which can be measured to determine the percent composition of chloride in the unknown. The results from these three...

Ammonia, Chloride, Chlorine 1164  Words | 6  Pages

Open Document

Antacid Lab

The Great Antacid Culminating Lab Purpose: To determine which antacid tablet is the most effective. Materials: 3 different antacid tablets, thymol blue, droppers, pH probe and necessary cables, pH probe holder, retort stand, 1 mol/L HCl, droppers, five 150 mL beaker, mortar and pestle, graduated cylinder, balance, weighing dish, stir rod Procedure: 1) Gather all the equipment you will need to do the lab. You will be working in groups of 3 2) Calibrate the pH probe as you practiced the day...

Acid, Acid dissociation constant, Gastric acid 793  Words | 4  Pages

Open Document

Lab Report

Lab Report: Halogen Reactions Purpose: This experiment will allow for exploration into some of the properties of Group 17 elements (halogens) and their compounds. More specifically, the solubility properties of these halogens will be used to predict their reactions. The relative electronegativities of the halogens will be determined. Halides,such as Cl-, Br-, and I- will be used to make these determinations. Because this lab is qualitative rather than quantitative, there are no calculation...

Bromine, Chlorine, Electronegativity 621  Words | 3  Pages

Open Document

Lab Report Digestion

in the stomach (gastric digestion) where the enzyme pepsin splits proteins to shorter polypeptide chains containing amino acids. Secretion and activation of pepsin occurs as follows: Pepsinogen(chief cells) | HCl (parietal cells)―――――――――→ | Pepsin | Besides activating pepsinogen, HCl provides the stomach a pH of 2, so the pepsin activity works at optimum level. For digestion of fat, pancreatic lipase reaction must be aided with the presence of bile salts as an emulsifier. Lipase is a water-soluble...

Amylase, Digestion, Enzyme 2115  Words | 7  Pages

Open Document

Heat of Neutralization Lab

Heat of Neutralization Lab   Objective:​  The objective of this lab was to measure, using a calorimeter, the energy changes  accompanying neutralization reactions.    Background:​  Chemical changes are always accompanied by a change in energy, typically as  heat. If the reaction releases heat  (ΔH  <  0) then the reaction is exothermic. If the reaction  absorbs heat  (ΔH  >  0) then the reaction is endothermic. The quantity of heat is measured  experimentally by having the reaction take place in an insulated container called a ...

Joule 995  Words | 3  Pages

Open Document

Titration Lab Report

water trough so as to avoid stops up. 4) After every experiment, the students being on duty shall take responsibility for cleaning up the laboratory, inspecing the switch of water and electricity, and closing the window. 5) write the experiment report according to the primary record and turn in. Laboratory safety regulations 1) Corrosive acids and alkali must be treated carefully, and be sure not to splash on clothes, skin and eyes. While diluting strong sulfuric acid, the acid should be poured...

Finger, Hand, Laboratory glassware 1878  Words | 6  Pages

Open Document

CHEM 103 Exp 10 Standardization NaOH

EXPERIMENT 10 Volumetric Analysis I Standardization of NaOH Solution Outcomes After completing this experiment, the student should be able to: 1. 2. 3. 4. Demonstrate the concept of quantitative analysis. Make solution and standardize it. Explain the difference between primary and secondary standard solutions. Quantitatively determine the concentration of a base. Introduction Titration is a common method of quantitative analysis used to determine the concentration of an unknown substance in a solution...

Acid, Erlenmeyer flask, Phenolphthalein 749  Words | 3  Pages

Open Document

Solution Preparation and Standardization

SOLUTION PREPARATION AND STANDARDIZATION Submitted by Iris Olaso ______________________________________________________________________________ INTRODUCTION Generally, there are two ways in preparing a solution, one is by dissolving a weighed amount of solid in a required solvent and the other is by dilution of a concentrated solution into the desired concentration. In diluting concentrated solution, the concentration of the diluted solution can be determined by standardization. To standardize a...

Erlenmeyer flask, Hydrochloric acid, Laboratory glassware 1345  Words | 5  Pages

Open Document

Chem Lab

Qualitative Analysis Lab Solubility Data Table Cations | Ag+ | Pb2+ | Cu2+ | Ni2+ | Ba2+ | NaCl | White ppt, AgCl(soluble in 12M HCl, soluble in sln of good complexing agent, 6M NH3) | White ppt, PbCl2(soluble in hot water, soluble in 12M HCl, soluble in sln of xs NaOH) | Soluble – no ppt | Soluble – no ppt | Soluble – no ppt | Na2CO3 | White ppt, Ag2CO3(soluble in 6M HCl, soluble in sln of good complexing agent) | White ppt, PbCO3(soluble in 6M HCl, soluble in sln of good complexing agent)...

Hydrogen, Ion, Nucleation 1201  Words | 4  Pages

Open Document

Titration Lab of Naoh and Khp

Titration Lab of NaOH and KHP Aim: To titrate Sodium Hydroxide with Potassium Hydrogen Phthalate . To also determine the concentration of NaOH in the KHP solution. Hypothesis: When KHP is added to the solution of NaOH and the indicator, the solution will turn clear and neutralize. The concentration of NaOH is going to be very low because it is diluted. Materials required: pipette filler, volumetric flasks(2-4), beakers(2),small white piece of paper, indicator( 2 drops), conical flask, clamp...

Base, Erlenmeyer flask, Laboratory glassware 951  Words | 4  Pages

Open Document


Thermodynamics- Enthalpy of Reaction and Hess’s Law December 5, 2011 Kylie Case, Emma McKee, Rebecca Smith Purpose: In this lab, the purpose was to verify Hess’s Law. Theory: Four main topics were covered during this experiment including enthalpy of reaction, heat of formation, Hess’s Law, and calorimetry. The first being enthalpy of reaction, ΔHrxn, which is the heat or enthalpy change for a chemical reaction. The energy change is equal to the amount of heat transferred at a constant...

Energy, Enthalpy, Entropy 1399  Words | 6  Pages

Open Document

An Introduction To Titration Lab Report

An Introduction to Titration: Standardization of HCl and NaOH Lab Report Introduction: It is important to standardize solutions in order to have the accurate amount of concentration known. A standard solution can be prepared in either of two ways: A primary standard is carefully weighed, dissolved, and diluted accurately to a known volume. Its concentration can be calculated from this data. A solution is made to an approximate concentration and then standardized by titrating an accurately weighed...

Acid, Base, Chemical reaction 527  Words | 3  Pages

Open Document

Lab Report

Lab Report 1  Introduction: Proper chemical formulas entitle many challenges such as the Law of Multiple proportions that states that there may be more than one plausible mole ratio for the elements in that compound. However if we determine the mass of each element in the compound we will be able to get the true chemical formula. In this experiment, we used the law of definite proportions to find the chemical formula for a hydrated compound containing copper, chlorine, and water molecules...

Chemical formula, Chemical formulas, Chemistry 1455  Words | 4  Pages

Open Document

chem lab 3

Lab RepoRt assistant 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...

Chemical reaction, Chemistry, Chlorine 420  Words | 3  Pages

Open Document

Chemical Changes Lab Report

Name: Jayanti Magar Title: Observations of Chemical Changes Date: 02/11/015 Pre Lab Questions: Use what you learned in this lab to answer the following questions. A. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). How would you test this material for the presence of sodium bicarbonate? I would add hydrochloric acid (HCl) with carbon dioxide with NaHCO3, and it should bubble and form gas. B. You know what color phenolphthalein and...

Acetic acid, Blue, Chemical reaction 792  Words | 4  Pages

Open Document

Test Tube Mystery Lab Report

Test Tube Mystery Introduction: The students were handed 10 test tubes with no identification. The students were supposed to design a method in determining what chemical was in each test tube. The list of chemicals is CuSO4, NH4Cl, NaOH, AgNO3, KI, H2SO4, NaBr, CaCl2, HCl, and Pb(NO3)2. The students are expected to determine the chemicals using physical properties, litmus paper, solubility, and the process of elimination. Physical properties, such as the color, can be determined by sight. Litmus paper...

Acid, Ammonia, Chemical reaction 912  Words | 3  Pages

Open Document

Lab report

copper penny. Variables: There were no variables at this experiment PROCEDURES: Materials: Zinc (SN) filling, 3M NaOH solution, Copper penny, tongs, Hot plate, 100 ml beaker, 250 ml beaker, Bunsen burner, Water, Spoon. Procedure: First, we turned on the hot plate. Then, we filled 250 ml beaker with 125 ml of water. We put half a spoon of zinc fillings. We add 20 ml of 3M NaOH solutions in it. We placed the beaker on the hot plate, which we had turned on before. We put the penny into the...

Brass, Brown, Color 613  Words | 3  Pages

Open Document

Penny Lab Report

IB Chemistry Experiment 4 Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all the zinc inside the outer copper shell. The reaction follows as such; Zn+2HCLZnCl2+H2, but there will be no reaction with copper. The portion that will be measured is the mass of copper left after all of...

Acid, Chemical reaction, Copper 674  Words | 3  Pages

Open Document

Irresistible Lab Report Chem 109

OH-, or H20 is added. By using standard lab equipment, a lab pro diagnostic tool, and acidic and basic solutions, the pH can be found. By recording the pH while adding a base or an acid gradually to a buffer solution you can find the capacity of each buffer to resist drastic changes in pH. The best buffers will keep a solution from becoming either too acidic or basic with the addition of a strong base or acid. Introduction The objective of the Irresistible lab is to determine the capacity of each...

Acid, Acid dissociation constant, Base 1297  Words | 4  Pages

Open Document

Acid and Base Report Qualitative Data

Acids and Bases Labs Report Aim: To study the characteristics of acids and bases. Experiment 1 Magnesium Ribbon with Sulphuric Acid |Observations | |Material/substance |Rate of reaction |Bubbles |Initial colour |Final colour |Other Observations | |H2SO4 |N/A |N/A |Colourless...

Ammonia, Carbon dioxide, Chlorine 459  Words | 4  Pages

Open Document

Lab Report

Chem 105 Guide to the Formal Laboratory Report The purpose of a formal report is to communicate effectively to another person the goal, procedure, data analysis method, and results of your laboratory work. The report is divided into several well-defined sections. Each section must be present in a complete report. To earn an outcome point for the laboratory report, a student must submit a formal lab report that earns a score of at least 90/100. Each error (factual, grammatical, typographical...

Chemistry, Erlenmeyer flask, Error 1317  Words | 5  Pages

Open Document

Benzoin Lab Report

 Synthesis of Benzoin Date of Experiment: 1-26-15 Chelsea Price Lab Partner: Joey Simmons Abstract: In this experiment, benzoin was synthesized from benzaldehyde, using thiamine hydrochloric acid as a catalyst. The thiamine HCl was deprotonated by sodium hydroxide and acted as a nucleophile to attack the benzaldehyde. A water-cooled condenser was used to heat the solution at reflux. Vacuum filtration was used to wash and dry the product. The benzoin product was recrystallized...

Chemistry, Chlorine, Distillation 777  Words | 6  Pages

Open Document

Solubility Postlab Report

______________ For Instructor Use Only POST-LAB REPORT FOR THE SOLUBILITY EXPERIMENT I) Conclusion: Write the conclusions regarding your observations and results obtained from each part 2A, 2B, 2C, and 2D, separately. Separately describe and explain in your conclusions whether the experimental...

Alcohol, Diethyl ether, Ethanol 831  Words | 8  Pages

Open Document

Become a StudyMode Member

Sign Up - It's Free