Laboratory #16: Analysis of Grease in Water by Solvent Extraction Experiment Date: 2/19/10 Due Date: 2/26/10 II. Objective The goal of this lab was to determine the amount of impurity‚ in the form of oil‚ in water using the method of solvent extraction‚ also known as liquid-liquid extraction‚ a method of separating two materials with different physical and/or chemical properties. Two methods of evaporation will be used to finally determine the concentration of impurity- one using an explosion-proof
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Lesson 2 Lab: Weighing on an Analytical Balance & Distillation PART 1 Begin by viewing the following Thinkwell video 15.1.8 CIA Demonstration: Weighing on an Analytical Balance After you watch the above video‚ answer the questions below in sufficient detail: (a) (2 pts) What are the features of an electronic balance? Include all of those discussed in the video. Answer: There were two features of an electronic balance discussed in this video. First there is the electronic read out which makes
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Lindsay Foreman 3-2-12 3-6-12 Humpty Dumpty Challenge Introduction: The purpose of this experiment is to determine the most efficient air bag that will protect Humpty when he is dropped. When talking about the most efficient air bag we are talking about using the least amount of chemicals to make the most carbon dioxide to inflate the bag. We hypothesized that a small amount of sodium bicarbonate with a small amount of acetic acid will create enough carbon dioxide to inflate the bag so Humpty
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Half-Life of M&Ms Introduction Half-life is the time required for something to fall to half its initial value. The half-life of a radioactive element is the time it takes for half of its atoms to decay into something else. M&Ms were chosen because they all have the same m mark on the on one side. In this lab you will go through predicting and counting the number of remaining "mark-side up" candies that should help understand that rates of decay of unstable nuclei and how it can be measured;
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Ase Ruth Alozie Chemistry Take home test May 4‚ 2013 In a laboratory experiment‚ a student reacted 2.8 grams of Fe (s) (steel wool) in excess CuSO4 (aq)‚ according to the following balanced equation: Fe(s) + CuSO4 (aq) -> FeSO4 + Cu(S). When the Fe(s) was completely consumed‚ the
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ALL FI515 Week 5 Exam Answers ------------------------------------------------- Top of Form QUESTION 1: Which of the following statements is CORRECT? 1. One of the disadvantages of a sole proprietorship is that the proprietor is exposed to unlimited liability. 2. It is generally easier to transfer one’s ownership interest in a partnership than in a corporation. 3. One of the advantages of the corporate form of organization is that it avoids double taxation. 4. One of the advantages of a
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List of Assignments-Week 2 Be Sure to submit these assignments by 09/27/2014 on BlackBoard‚ under “Assignment-Week 2. Answers must be labeled properly‚ with all pertinent information. No late submissions will be accepted. Assignment-1 The Procter & Gamble Company (P&G) The financial statements of P&G are Posted in BlackBoard‚ under “Handouts” Instructions Refer to P&G’s financial statements and the accompanying notes to answer the following questions. (a) What type of income statement format
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Laboratory 2: Examining Dyes and Dying Introduction Dyes‚ which used on material such as cotton‚ silk‚ wool‚ and nylon appears to have color due to the partial light absorption in the visible region of the electromagnetic spectrum. Chromophores‚ derived from Greek‚ Chroma meaning color and phoros meaning bearer makes light absorption feasible. Dyes contain both chromophore molecules and auxochrome molecules; chromophore molecules include unsaturated groups‚ for instance carbon-carbon double bonds
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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?
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to increase in direct translation to the concentration increasing. The theory surrounding this lab was to see in practice how density could be determined with displacement and then to determine whether the density does in fact increase directly with the concentration. Summary of Key Data Figure 1: From Part 1 Mass of Brass 13.2200g Initial Volume 16.86mL Finial Volume 18.45mL Figure 2: From Part 2 Mass of the Empty 50-mL Flask 37.393g Weight of Flask Filled with 50-mL of Water 87.096g Weight Closest
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