"Lab 2 Gravimetric Analysis Of Chloride" Essays and Research Papers

  • Lab 2 Gravimetric Analysis Of Chloride

    Gravimetric Analysis of a Chloride Salt CHEM 1001 Purpose: To illustrate typical techniques used in gravimetric analysis by determining quantitatively the chloride content in an unknown soluble salt. Theory: AgCl(s) is a very insoluble solid, yet still does have some solubility. Because of these traits, the following reaction is able to occur: Ag+(aq) + Cl−(aq) → AgCl(s) . This reaction is able to occur in both directions. When a soluble silver salt such as AgNO3 is added to a solution...

    Deviation, Filter paper, Mean 1476  Words | 6  Pages

  • Gravimetric Analysis

    Gravimetric Analysis CHEM 200-03 Fall Semester 2012 September 19, 2012 Jeff Marasigan Abstract Gravimetric analysis is based on the quantitative isolation of the desired constituent the analyte of interest from the sample in highly pure form or in some combined form and weighing the isolated constituent. The desired constituent is usually isolated or separated by precipitation. From the weights of sample and precipitate, the percentage of the constituent in the original sample can...

    Analytical chemistry, Chemistry, Ion 1107  Words | 5  Pages

  • CHEM 1001 GRAVIMETRIC ANALYSIS OF A CHLORIDE SALT

     GRAVIMETRIC ANALYSIS OF A CHLORIDE SALT (2013) Report By: ____________ Lab Partner: ___________ Group: CHEM 1001 Tuesday AM, Group H Purpose: This lab was conducted in order to determine the content of chloride in an unknown salt, using gravimetric analysis. Theory: The salt chloride content is easy to find because it is slightly soluble, making it possible to turn it into a precipitate. A precipitate...

    Ammonia, Chloride, Chlorine 1141  Words | 6  Pages

  • Gravimetric Analysis

    Quantitative Determination of Gravimetric Analysis Ophelia Low Gek Suan 1311907DBT/FT/1A/01 | SYNOPSIS By gravimetric analysis, we are able to determine the amount of sulphate in barium sulphate quantitatively. We can do so by slowly adding dilute barium sulphate to an unknown sulphate solution that has been heated and acidified with concentrated hydrochloric acid slightly. A white precipitate will be yield from filtering the solution...

    Concentration, Filter paper, Hydrochloric acid 934  Words | 4  Pages

  • Quantitative Determination of Sulphate by Gravimetric Analysis

    CP4001: ANALYTICAL & PHYSICAL CHEMISTRY | | Formal Report of the Quantitative Determination of Sulphate by Gravimetric Analysis (Experiment 4) | Maryjo Lee Wei Min 1111107 DBS/FT/1A/01 | (A) Synopsis The amount of sulphate is determined quantitatively as barium sulphate by gravimetric analysis. This determination consists of slowly adding a dilute solution of barium chloride to a hot, unknown sulphate solution which is slightly acidified with concentrated hydrochloric acid. A white precipitate...

    Chemistry, Concentration, Filter paper 1596  Words | 6  Pages

  • Gravimetric Analysis

    Gravimetric Analysis Report Aim: Determine the % by mass composition of a sand-salt mixture. Background: Gravimetric analysis is a method which is based on the isolation of the desired sample in pure forms or in some combined form from a sample, and weighing the isolated constituent. Then from the weights of the sample or precipitate, a percentage can be calculated out of the constituent. Solubility is the amount of a substance which is called the solute, dissolves in a volume of liquid substance...

    Distillation, Evaporation, Filter paper 669  Words | 3  Pages

  • Gravimeter Analysis Of A Chloride Salt

    Gravimeter Analysis of a Chloride Salt Author Name: Abdulla Almahmood Partner: Mohamed Almahmood Date: November 11, 2014 Group: A4 PURPOSE To find the amount of chloride in an unknown salt using typical techniques of gravimetric analysis. THEORY Adding Silver Ion In Order To Precipitate Chloride Ion Due to the extreme insolubility of it’s automatically assumed that the reaction shown above will be completed. However, some of will actually dissolve as following: Furthermore, the solubility...

    Chemistry, Chloride, Chlorine 1216  Words | 12  Pages

  • Gravimetric analysis of a salt

    Purpose: The Purpose of this lab is to utilize, demonstrate and understand the various techniques and procedures used to gravimetric labs. For this particular lab we will utilize our scientific knowledge of related to gravimetric procedures to find the chloride content in an unknown soluble salt. Theory: Using our developed knowledge of the conservation of mass, solubility and precipitation it is possible (with some degree of error) to know the content of chlorine in a particular salt by dissolving...

    Chemistry, Chloride, Chlorine 2005  Words | 6  Pages

  • Gravimetric Analysis report

    SynopsisThe objective is to determine the amount of Sulphate in anhydrous Barium Sulphate precipitate by gravimetric method. Gravimetric method is by the quantitative determination of the mass of anhydrous Barium Sulphate precipitate. Barium sulphate precipitate is form when Barium Chloride is added excessively to a hot given Sulphate solution slightly acidified with concentrated Hydrochloride acid. The white precipitate of hydrate Barium Sulphate formed is than digest, filtered out, washed and dried...

    Barium, Barium chloride, Chemical substance 1400  Words | 5  Pages

  • Gravimetric Analysis

    GRAVIMETRIC ANALYSIS Methods in GA Precipitation Method - involves isolation of an ion in solution by a precipitation reaction, filtering, washing the precipitate free of contaminants, conversion of the precipitate to a product of known composition, and finally weighing the precipitate and determining its mass by difference. From the mass and known composition of the precipitate, the amount of the original ion can be determined. Volatilization Method -the analyte or its decomposition products...

    Colloid, Crystallization, Electric charge 1317  Words | 5  Pages

  • Gravimetric Analysis of a Soluble Sulfate

    Abstract Gravimetric analysis describes the methods for finding the chemical constituent of analyte in a solution through analytical chemistry. This method uses the mass of solid SO42-, with an unknown quantity and quality, to qualitatively determine the makeup of the solid SO3-. Two separate experiments with the initial compounds of BaCl2 and SO42- were put into solution to allow for the BaSO4 precipitate to form. Through filtration and ignition of precipitate containing ashless papers...

    Analytical chemistry, Barium chloride, Crucible 1682  Words | 6  Pages

  • Gravimetric Analysis

    Gravimetric Analysis of SULFATE as Barium Sulfate. Objectives * To learn the techniques associated with gravimetric analysis. * To use stoichiometry to calculate the percentage by mass of sulfate in an unknown sulfate salt. Background Gravimetric analysis is a quantitative method for accurately determining the amount of a substance by selective precipitation of the substance from an aqueous solution. The precipitate is separated from the remaining aqueous solution by filtration and...

    Barium, Barium chloride, Chemistry 1349  Words | 4  Pages

  • Copper Chloride Lab Report

    Copper Chloride Lab Report Procedure Part A: 1. Pick up the container of copper chloride dehydrate, and observe material. Describe crystals in detail, and write down all of the observations. Part B: 1. Take a 100 ml beaker and fill ¼ of it with water. Use a spatula to add some copper chloride dehydrate to the beaker filled with water. Record the observations. Be sure to observe the water and the copper chloride dehydrate. 2. Stir the contents in the beaker with...

    Aluminium, Chemistry, Electrical conductivity 652  Words | 3  Pages

  • Quantitative Determination of Sulfate by Gravimetric Analysis

    Quantitative Determination of Sulphate by Gravimetric Analysis Table of Contents: 1. Synopsis 2. Objective 3. Theory 3.1: Summary 3.2: Technique 3.3: Chemicals 3.4: Instruments 4. Procedures 4.1: Precipitation of BaSO₄ 4.2: Washing and Filtration of BaSO₄ Precipitate 4.3: Drying and Weighing of BaSO₄ Precipitate 5. Results and Calculations 6. Discussions 7. Conclusion 8. References 1. Synopsis: This report is written about determining...

    Analytical chemistry, Barium sulfate, Chemistry 2004  Words | 7  Pages

  • Quantitative Determination of Sulphate By Gravimetric Analysis

    CP4001) EXPERIMENT 4: QUANTITATIVE DETERMINATION OF SULPHATE BY GRAVIMETRIC ANALYSIS FORMAL REPORT NAME: CHIA KOK SIONG ADMIN NO: 1027325 CLASS: DFST/FT/2B/21 � SYNOPSIS The objective of this experiment is to determine the amount of sulphate by gravimetric analysis. The amount of sulphate is determined quantitatively as barium sulphate, BaSO4, by gravimetric analysis. For the experiment, a dilute solution of barium chloride was slowly added to a hot unknown sulphate solution slightly acidified...

    Analytical chemistry, Barium, Concentration 1624  Words | 7  Pages

  • Lab Report

    Name: Tan Zuen Rian Admin No.: 1155592 Class: 1A/02 Experiment 4: Quantitative Determination of Sulphate by Gravimetric Analysis Synopsis: This experiment aims to determine the amount of SO42- via the gravimetric method. By this way, we will be able to familiarize ourselves with the procedures of gravimetric analysis. Precipitation of BaSO4 is done by acidifying the diluted sulphate solution and then adding BaCl2 solution after heating it for some time. A test for complete precipitation is...

    Barium, Barium chloride, Chlorine 1002  Words | 3  Pages

  • Chem 103 Project Lab

    The data gathered and calculated in the experiment accurately portrayed the way the reactions would have taken place. The chloride analysis was a little bit off from other groups due to the fact that our AgCl was in clumps, creating less surface area, thus our product took longer to burn and may not have burned correctly compared to other groups; yet there are several experimental factors that could have caused us to have different results than other groups, i.e. different measurements for samples...

    Chemistry, Concentration, Error 1372  Words | 4  Pages

  • lab analysis

    Lab Analysis Questions 1. What are the important ions for most neurons when considering changes in membrane potential? (3 points) 2. What is the resting membrane potential? (3 points) 3. What does it mean that the voltage just inside the membrane is negative? (4 points) Neurophysiology of Nerve Impulses Activity 2: Receptor Potential (20 points total) Notes: • After reading the Overview and Introduction, Click on Experiment. • Follow the directions on the left side of the...

    Action potential, Chemical synapse, Nervous system 436  Words | 3  Pages

  • Indirect Gravimetric Determination

    The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These methods differ from...

    Analytical chemistry, Bunsen burner, Crucible 696  Words | 3  Pages

  • Chem Lab Project 2

    purpose  of  this lab was  to study  the specific  characteristics  of cations  and anions,  and  ultimately  to  be  able  to  identify  an  unknown  substance  based  on  our  studies and  tests using the  logic trees  developed through the experiment.  A logic tree  is  a graphical display  of the findings from  this  lab  which,  through  a  series  of  yes/no   questions,  elimination  tests,  will  help  us  to  identify   and  unknown sample.  This lab will  result in 2 logic trees, one for identifying cations and the other...

    Ammonia, Chemistry, Ion 2646  Words | 7  Pages

  • Condumetric and Gravemetric Lab Report

    Conductimetric Titration and Gravimetric Determination of a Precipitate Objective: * Measure the conductivity of the reaction between sulfuric acid and barium hydroxide * use conductivity values to determine equivalence point * measure mass of a product to determine equivalence point gravimetrically * calculate molar concentration of barium hydroxide solution Procedure: * First, combine 10.0 mL of the Ba(OH)2 solution with 50 mL of distilled water. Then, measure out 60 mL...

    Amount of substance, Concentration, Equivalence point 602  Words | 3  Pages

  • Gravimetric Analysis: the Determination of Phosphorus in Plant Food

    Gravimetric Analysis: The Determination of Phosphorus in Plant Food Gravimetric analysis is a quantitative (i.e. how much?) method of classical analysis. The element to be determined is isolated in a solid compound of known identity and definite composition. The mass of the element that was present in the original sample can be determined from the mass of this compound. Plant foods contain three essential nutrients that are not readily available from soils. These are soluble compounds...

    Ammonia, Fertilizer, Filter paper 863  Words | 3  Pages

  • Gravametric Quant Lab Report

    Quantitative Analysis Gravimetric Determination of Iron as Fe2O3 Laboratory Experiment 2 February 19, 2013 Abstract: In the Gravimetric determination is the measurement of mass in two different forms precipitation and volatilization. In our experiment we will be using the precipitation form which isolates an ion in a solution by a precipitation reaction, filtering, purifying by wash method, conversion to product of known composition, and final weigh of the product comparing the mass...

    Analytical chemistry, Chemistry, Filter paper 1394  Words | 5  Pages

  • T Pentyl Chloride Lab Report

    Synthesis of t-Pentyl Chloride Introduction: Using SN1 reaction mechanism with hydrochloric acid, t-Pentyl alcohol was converted to t-Pentyl chloride in an acid catalyzed reaction. The reaction took place in a separatory funnel designed to separate immiscible liquids. The crude product was extracted by transferring a solute from one solvent to another. The process of washing the solutions by phase transfer was used in order to remove impurities from the main solvent layer. Finally, the crude...

    Distillation, Ethanol, Hydrochloric acid 1041  Words | 4  Pages

  • Analysis of Silver in an Alloy

    Analysis of Silver in an Alloy Introduction In this experiment an alloy of silver will be analyzed to determine its silver content. The silver-copper alloy will be dissolved in nitric acid, the silver will be precipitated as silver chloride, and the silver chloride will be filtered, washed, dried and its mass determined. From the mass of the silver chloride formed and the mass of the original sample, you will be able to calculate the percent of silver in the alloy. Because the results are...

    Ammonia, Chloride, Chlorine 1632  Words | 6  Pages

  • Quantitative Analysis of a Soluble Sulfate

    ­ Chem 102 - Lab #2 Quantitative Analysis of a Soluble Sulfate Steven English Lab Instructor: Dr. Campo Date: Tuesday, February 5th 2013 Pre-Lab Questions A. Adding the acid to the sodium sulfate solution results in an increase in the solubility of any free anions present in the sample. This will happen because the present anions will bind with the hydrogen cations present in the acid. B. The sodium sulfate is boiled because experiments have shown that barium sulfate is 50...

    Digestion, Filter paper, Hydrochloric acid 1515  Words | 6  Pages

  • Flame Test Lab

    Timothy Johns Christian Howard  Wan Huang 10/18/12 Flame Test Lab Introduction Spectroscopy is the study of the electromagnetic radiation emitted or absorbed by atoms and molecules. These studies are very helpful in determining an unknown element, given the fact that all elements burn a different color. The flame colors vary because of the different amounts of energy the elements give off. This lab is made for the learner to determine the identity of two unknown elements. Hypothesis If...

    Calcium chloride, Flame, Lithium 594  Words | 3  Pages

  • Ap Chemistry - Gravimetric Lab

    Willy Rupprecht Date(s) performed: October 2 - 3, 2012 Gravimetric Analysis of an Unknown Group 1 Metal Carbonate Purpose: The purpose of this lab is to determine the identity of a Group 1 metal carbonate compound by gravimetric analysis. Procedure: The unknown carbonate is weighed and then dissolved in water. A solution of CaCl2 (calcium chloride) is added to the metal carbonate solution to precipitate the carbonate ions as CaCO3 (calcium carbonate). The precipitate is then filtered, dried...

    Calcium, Calcium carbonate, Carbon dioxide 599  Words | 2  Pages

  • Gravimetric Determination of Phosphorus in Plant Food.

    Abstract: Gravimetric analysis can be used to determine the percentage of phosphorus in plant food. A precipitant of known composition is produced and weighed to find percent of phosphorus in compound. From the mass and known composition of the precipitate, the amount of original ion can be determined. Introduction: Gravimetric analysis is based on the measurement of mass. Gravimetric analysis involves isolation of an ion in solution by a precipitation reaction, filtering, washing the precipitate...

    Filter, Filter paper, Gravimetric analysis 818  Words | 5  Pages

  • Lab Analysis

    Iker Lopez Anatomy & Physiology P2 Wednesday, September 19, 2012 Heart Rate Response to Baroreceptor Feedback Lab Fundamental Question: Does the body respond to its environment? Testable Question: When the body is in the squat position to normal while the time limit stays the same and how far you squat is the same, will the heart rate recover after returning to standing position in 10 seconds? Hypothesis: If the body moves back to normal position from squatting position while the time limit...

    Audio feedback, Control theory, Cybernetics 1382  Words | 5  Pages

  • Cu Recycle Lab

    Cu Metal Recycling Lab Mr. Nelson – Chemistry Purpose: The purpose of this lab is to carry out an extensive series of reactions based on the element copper. These reactions include; synthesis, decomposition, single and double replacement. In this experiment, recycling will also be introduced. Procedure: See attached Story board. Data and Observations and Data Analysis: Step Word Equation 1 Balanced Chemical Equation Type of Reaction Observations Copper + nitric Cu + 4HNO3 ...

    Aluminium, Chemical reaction, Chlorine 401  Words | 5  Pages

  • Equilibrium Lab

    Julie Nguyen Equilibrium Lab 4-28-14 I. Purpose To study the affect of temperature & concentration changes on systems in equilibrium II. Safety Wear apron Wear goggles Do not spill chemicals Clean up after use Wash hands Chemicals are TOXIC (by Britney Spears) III. Procedure A. Iron-thiocyanate equilibrium Pipet .3mL of 1 M iron (III) nitrate and .3 mL of 1 M ammonium thiocyanate. into clean 250 mL beaker. Add 75 mL of DS water. Mix well. Divide the solution into equal...

    Chemistry, Chloride, Chlorine 907  Words | 3  Pages

  • Lab #2

    32 LAB #2 | Perform a Vulnerability Assessment Scan Using Nessus LAB #2 – ASSESSMENT WORKSHEET Perform a Vulnerability Assessment Scan Using Nessus Course Name and Number: Student Name: Instructor Name: Lab Due Date: Overview This lab demonstrated the first three steps in the hacking process that is typically performed when conducting ethical hacking or penetration testing. The first step in the hacking process is to perform an IP host discovery and port/services scan (Step 1: Reconnaissance...

    Computer security, Operating system, Performance 402  Words | 3  Pages

  • Gravimetric Determination of Calcium

    Gravimetric Determination of Calcium ABSTRACT Determining the mass of a pure compound is a method of a gravimetric analysis. One of the gravimetric analyses is the precipitation; it is a method of separating the analyte from the unknown sample as a precipitate where it will be filtered and converted into a known composition that can be weighed to determine its mass (Skoog et al, 2013). Determining the mass of calcium by using gravimetric analysis was the objective of the experiment. A 25 mL...

    Analytical chemistry, Calcium oxalate, Filter paper 1401  Words | 4  Pages

  • Flame Test Lab

    | |Lithium Chloride |Moderately | | |Toxic by ingestion | |Potassium Chloride |Slightly toxic by ingestion | |Calcium Chloride |Slightly...

    Electromagnetic radiation, Energy, Frequency 259  Words | 3  Pages

  • Lab

    Toxicology Lab      1. In  this investigation, a wide range of concentrations of  Sodium Chloride (NaCl) solution  were   created   and  the  effects  that  they  had  on  radish   seeds  were  tested.  This  ultimately  created  a  dose­response  experiment  in  which  it  was  detectable whether  or  not  radish  seeds  were  a  reliable  bioassay  for  the   toxicity  of  NaCl.  The  goal  of  this  experiment  was  to  determine  a  correlation  between  toxicity  and  seed  germination/radicle ...

    Cotyledon, Embryo, Germination 1313  Words | 3  Pages

  • Lab 2

    LAB 2 1. Identify the functional group or molecule for each of the following. (3 points) a. Carboxyl group/acid, aldehyde group b. Hydroxyl group, alcohol group c. Hydroxyl group, alcohol group 2. List whether each of the following substances was positive or negative for reducing sugar, as indicated by the Benedict's test. (6 points) a. Corn syrup (1 point) Positive b. Table sugar (1 point) Positive c. Unknown 1 (1 point)Negative d. Unknown 2 (1 point)Negative e. Unknown 3 (1 point)Negative...

    Carbohydrate, Fructose, Glucose 941  Words | 3  Pages

  • Lab report

    be determined. Then by writing a balanced chemical equation and using the titration formula, Nb+Ma+Va=Na+MbVb , the molarity is able to be determined. Procedure: 1) Using the graduated cylinder add 10.0 mL of water into the Erlenmeyer flask. 2) Add 5.0 mL of HCl into the flask using another graduated cylinder because acid goes into water when mixing them. 3) Add three drops of phenolphthalein indicator into the flask. 4) Swirl the flask in circular movements to mix the substances. 5) Put...

    Acid, Base, Erlenmeyer flask 979  Words | 7  Pages

  • Flame Test Lab Write-Up

    unknown substance based on flame color. Materials: * Samples of the following metallic salts * Calcium chloride * Copper chloride * Iron chloride * Lithium chloride * Potassium chloride * Sodium chloride * Strontium chloride * Unknown 1 * Unknown 2 * Bunsen burner and accessories * Safety goggles * Lab apron * Splints soaked overnight in distilled water * 250 mL beaker half full of distilled water Procedures:...

    Calcium chloride, Color, Metal 786  Words | 3  Pages

  • Lab 2

    Lab 2: Writing a Lab Report Variable | Hypothesized Effect | Cold Temperature (32 degrees) | The beans will not sprout | Warm Temperature (80 degrees) | The beans will sprout after a few days | Moisture | The beans will sprout after a few days | Dry | The beans will not sprout | Sunlight | The beans will sprout quickly | Light bulb | The beans will take a long time to sprout (weeks) | Soil | The beans will sprout after a few days | Soaked in water | The beans will not sprout | ...

    Bean, Embryo, Germination 742  Words | 3  Pages

  • week 4 lab 2

    Student Name: ________________________________________________________________ Abena Shaw Instructor Name: ______________________________________________________________ 01/18/2015 Lab Due Date: ________________________________________________________________ Overview In this lab, you used two very powerful forensic analysis tools, Wireshark and NetWitness Investigator, to examine the same File Transfer Protocol (FTP) traffic capture file, and compare the results of each. FTP is a protocol that is used...

    File Transfer Protocol, Internet, IP address 381  Words | 2  Pages

  • Ion Analysis

    Testing for Ions Analysis Chemical Changes of Test Solutions Test Solution Silver Nitrate Barium Chloride Potassium Thiocyanate Sodium Sulfate - Stayed white in color - Turned cloudy in color - Precipitation formed in solution - Stayed white in color Potassium Chloride - Turned cloudy in color - Precipitation formed in solution - Stayed white in color - Stayed white in color Iron (III) Nitrate - Stayed orange in color - Stayed orange in color - Changed color from orange...

    Chemical reaction, Chemistry, Chlorine 525  Words | 3  Pages

  • Gravimetric Sulfate Determination

    GRAVIMETRIC DETERMINATION OF SULFATE Purpose You will be given a solid powder, which has been dried to constant mass. The sample is water soluble. The purpose of this experiment is to determine the concentration of sulfate in your solid sample using gravimetric analysis. Background Gravimetric Analysis The goal of most quantitative chemical analysis measurements is to estimate the relative abundance of an analyte in a chemical sample. For solid and liquid samples, a very common expression...

    Analytical chemistry, Chemistry, Concentration 1384  Words | 5  Pages

  • Ochem Lab Report 2

    Abstract: For the first part of this lab we refluxed different Carboxylic acids and alcohols in the presence of a acid catalyst in order to form Esters by Fischer Esterification. These Esters had different pleasant smells that we then evaluated. In the second part of the experiment, we broke the ester bonds of a triglyceride in order to form glycerol and carboxylate salts. This process is known as Saponification because it produces amphiphilic molecules that allow soap to remove dirt from the surface...

    Carboxylic acid, Ester, Fatty acid 1675  Words | 5  Pages

  • Lab: Flame Test

    Lab 1: Flame Test 11 Chemistry, university Preparation Conducted: September 20th, 2010 Purpose: To observe, and create a chart of the colours produced when solutions of known metal compounds are heated to high temperature. Question: What colours are produced when different metallic compounds are placed in a flame, and why this happens? Hypothesis/Prediction: Different salts will produce different colours when placed in a flame, due to the fact that each element has a different...

    Atom, Chlorides, Chlorine 800  Words | 4  Pages

  • Lab 2

     GS104 Lab Report Experiment # 2 Data Collection David Case: January 23, 2015 Experiment #2 Data Collection Objectives: Exercise 1: Formulating a Hypothesis about pitching speed. To form a hypothesis for the pitching velocity of a ball. Use a spreadsheet and math to calculate the actual velocity and determine the accuracy of the hypothesis. I will also roll a large ball to measure its velocity and graph its horizontal motion. Materials:...

    Acceleration, Baseball, Experiment 742  Words | 7  Pages

  • lab 2

    flow towards the cooler end. This will make a gradual increase of temperature at the cooler end until an equilibrium temperature is established. Usually, the changes that occur within the bar is not instantaneous and will be different at both end. 2. Radial conduction heat transfer Fluid motion that resulted by force over the surface by an external source, such as fans or pumps. Small movement of air is generated which limits the heat transfer rate from the hotter surface to the surrounding air...

    Fluid dynamics, Fluid mechanics, Fundamental physics concepts 1105  Words | 6  Pages

  • Activity Series Lab Grade 12 Chemistry

    Purpose: The purpose of this lab is to investigate the reliability of the activity series of metals by testing in solution, confirming if the activity series was correct with its predictions. Hypothesis: It is predicted that the metals in solid form will displace metals in solution if located higher over the other within the activity series chart. Materials: 10 test tubes Test tube holder Metals in Solid Form 1. Aluminum 2. Iron 3. Zinc 4. Magnesium 5. Zinc 6. Aluminum 7. Copper ...

    Aluminium, Chemical element, Copper 847  Words | 4  Pages

  • Lab 2

    Taylor Durham Nutrition 101 Mr. Oropallo Lab Report #2: Fat Extraction From Food What is a triglyceride? Draw its structure. A molecule that contains three fatty acids attached at the oxygen atoms of glycerol. What are the differences between saturated and unsaturated fats? Drawn an example of each. If all bonds are single, the fatty acid molecule is saturated. If there is a double bond among the carbon atoms, the fatty acid molecule is unsaturated. What form does each of these fats take...

    Butter, Fat, Fatty acid 254  Words | 3  Pages

  • Lab 3: Gravimetric Analysis of a Metal Carbonate

    Dr. Istone Lab 3: Gravimetric Analysis of a Metal Carbonate Lab Objective: In this lab we will determine the identity of a group 1 metal carbonate compound by gravimetric analysis. The unknown is weighed and dissolved in water and the precipitate is filtered, dried, and weighed. From the data the formula weight and identity of the unknown metal carbonate is determined. Lab Procedure: 1. Set up the Bunsen burner and ring clamp, light the burner and heat the crucible. 2. Add 2g of unknown...

    Calcium carbonate, Filter paper, Gravimetric analysis 396  Words | 2  Pages

  • Chem Lab 2

    Experiment no. 2 Classification of Matter Morillo, Mary Jane J. Nidua, Maria Angelene Group no. 2/Chemistry Lab./Engr. Ma. Jeanette U. Obias Abstract The classification of matter was demonstrated through simple activities of mixture, heating and magnetic attraction describing its physical state , its chemical reactions and its separation to other substances. Simple reagents such as Iron filings and Sulfur powder in our experiment were considered as elements, while solid mixtures such...

    Chemical compound, Chemical element, Chemical substance 996  Words | 4  Pages

  • 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

  • Chemistry: Flame Test Lab

     Flame Test Lab Morgan Chemistry CP 5/30/14 Abstract- In the flame test lab, the flame test was performed to excite the electrons in the samples and observe the color of the flame. The flame emits a color because each element has an exactly defined emission spectrum, which one can use to identify them. For example, NaCl was highlighter yellow, Sr(NO3)2 was sun orange, CuCl2 was turquoise, LiCl was neon red, KCl was solar flare yellow, and BaCl2 was Voldemort green. Introduction- ...

    Calcium chloride, Color, Green 925  Words | 5  Pages

  • Lab 2

    Lab 2: Protiens and Starches Purpose: An introduction to testing procedures for two large, organic molecules: proteins and starches. Hypothesis: In the test for protiens the water, being that it is inorganic will not test positive for protiens; it will serve as the negative control. The milk and 50% egg solution should test positive for protien as they are subsatnce derived from animals which contain protiens in order to carry the functions of life. The sucrose will test negative due...

    Carbohydrate, Cooking, Egg white 559  Words | 3  Pages

  • Lab 2

    Solvent/Water Trap Diagram Rodney Atwaters Halle Bair May 28, 2013 Chemistry 36100 Introduction The purpose of this lab was to produce benzoic acid by mixing sodium benzoate with hydrochloric acid. The Hydrochloric acid used in the experiment was a stock solution made by mixing HCl Acid and deionized water. HCl acid, historically called, muriatic acid or spirits of salt, hydrochloric acid is produced from sulfuric acid and common salt, NaCl (Princeton.edu). Since the early 1900's, sodium...

    Chemistry, Chlorine, Hydrochloric acid 931  Words | 4  Pages

  • Wad A Watershed Lab 2

    TITLE: Wad a Watershed Lab INTRODUCTION: Using models is very important in science. In this lab, you will design a model that will help you investigate the relationship between land surfaces and water on Earth. OBJECTIVE: To design a model that will help you visualize watershed characteristics. PROBLEM: How can we use the relationships between land surfaces and water to understand conservation of resources and pollution? HYPOTHESIS: In your own words, write a hypothesis about how the relationships...

    Hypothesis, Imagine Entertainment, Paper 804  Words | 2  Pages

  • Lab Report

    Lab 20: Flame Tests Purpose/Objective: The ground state is the normal electron configuration of atoms or ions in an element. When atoms or ions in ground state are heated to a higher temperature, some electrons absorb enough energy to move them to higher energy levels. This is known as the excited state. However, the excited configuration is unstable, and the electrons must return back to their positions in the lower energy level. As they return, the energy that was previously absorbed is now emitted...

    Atom, Atomic orbital, Electron 1271  Words | 4  Pages

  • Lab 2

     Macromolecules of Life Hands-On Labs, Inc. Version 42-0085-00-01 Lab Report Assistant ________________ Name: Akil Kelly Exercise 1: Testing for Proteins Data Table 1: Biuret results. Substance Tested Predicted Results Biuret Color & Number of drops added 1: Egg white Contains Protein Purple color – 9 drops 2: Pepsin Contains Protein Purple color – 9 drops 3: Sugar Doesn't contain protein...

    Carbohydrate, Disaccharide, Experiment 1012  Words | 10  Pages

  • Gravimetric Determination of Phosphorus in Fertilizer Samples

    Gravimetric Determination of Phosphorus in Fertilizer Samples ------------------------------------------------- Results and Discussion More than 50% of fertilizers are composed of nitrogen, phosphorus and potassium because these three nutrients are essential but are deficient in soils. To ensure good quality of fertilizers, it is significant that the amounts of these nutrients are quantified. In this light, gravimetric principles are of much use. The objective of the experiment is to determine...

    Ammonia, Colloid, Crystallization 1089  Words | 4  Pages

  • Lab Report Analysis

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