Experiment 3 Liquid-Liquid Extraction Discussion The success of extracting each compound out of the solution can be seen in the IR graphs for each substance. For ethyl 4-aminobenzoate‚ the N-H‚ C=O and C-O are distinguishable in their proper wavenumber positions. The amino N-H stretch was found between 3224 cm-1 and 3423 cm-1. The C=O was found at 1681 cm-1 and the C-O was at 1280 cm-1. The IR for benzoic acid also displays its significant bonds‚ O-H and C=O. The O-H was between 2566 and
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Liquid Nitrogen Randi Pinter Community College of Aurora Rebecca Hoenigman Chem 101-360 Sitting in a classroom with a guest speaker‚ wondering what was in the tank and why there were carnations nearby. As a young student‚ guest speaker days were an exciting thing to be a part of. The full history of the lesson may have been lost in time; but when the speaker dipped a carnation in a tub of liquid that was pouring smoke onto the classroom floor‚ the results of his actions had the power to make a
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the pH of several different liquids as well as learning how to change the pH of those liquids by adding other acidic and alkaline mixtures. Materials: Graduated cylinder- used to measure the various liquids 4 100 mL beakers- used to hold liquids when measuring pH pH meter- used to measure the pH of the various liquids Tap water- liquid we are trying to find pH of Distilled water- liquid we are trying to find pH of Soda- liquid we are trying to find pH of Milk- liquid we are trying to find
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Business Statistics‚ 9e (Groebner/Shannon/Fry) Chapter 10 Estimation and Hypothesis Testing for Two Population Parameters 1) The Cranston Hardware Company is interested in estimating the difference in the mean purchase for men customers versus women customers. It wishes to estimate this difference using a 95 percent confidence level. If the sample size is n = 10 from each population‚ the samples are independent‚ and sample standard deviations are used‚ and the variances are assumed equal‚ then
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The order that the liquids were in was blue‚ orange‚ green‚ yellow‚ and red. On our first trial‚ we only put in blue‚ green‚ red‚ and yellow mixtures inside the test tube. Before we even put in the orange solution‚ the yellow liquid started to mix in with the red solution. It meant that the yellow sugar water was more dense than the red sugar water. On our second trial‚ we tried to put the green mixture first to see what would happen. When we put the green mixture inside the test tube‚ we decided
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FE 106 GENERAL CHEMISTRY EXPERIMENT-1 DENSITY OF LIQUIDS PREPARED BY BURAK COBAN PURPOSE: In this experiment we will learn how can we find the density of liquids and liquids of density how change effect of temperature‚ pressure‚ mass‚ volume and concentration. For this reason we will take NaCI solutions with different concentrations and we will measure their densities‚ so we will find out the effects of concentration on density of solutions. THEORY:
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Hypothesis Testing Paper Team A PSY/315 July 7‚ 2014 Instructor: Regina Pendergrass Inside statistics‚ it has to be understood what hypothesis testing is to find and verify research to be studied. Hypothesis testing is a form of research that is used to show how a certain issue will end or how the researcher(s) think the issue will end in the environment that it is situated. The testing will show that even though an answer may form‚ it does not prove the answer is correct secondary to the
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Liquids & Solids Pre Lab Questions: 3pts 1. What are the learning goals of this lab? The learning goal of this experiment is to view and experience the melting point and boiling point of different substances. 2. Why is acetamide not allowed in contact with your skin? What precautions does one have to take to work with this chemical? Acetamide is a carcinogen‚ which can cause cancer. Therefore‚ it should not be allowed to come in contact with a person’s skin. Any person working with this chemical
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Bamboo Bath Towels - Are They Worth The Money? In the event that you are searching for a cuddly and delicate accomplice to add to your restroom‚ then bamboo shower towels could be a perfect option. Bamboo towels are Eco-accommodating and are extremely spongy (they really retain 60% more than cotton does). Bamboo towels are made from bamboo filaments which back in the chronicled days‚ were utilized as a part of making clamors and the rib of girdles. Presently bamboo filaments are being utilized
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Securing Yourself Online Final Version 1 Attention Catcher: You are at risk. All of us are at risk. I’m not talking about STDs‚ global warming‚ or terrorism. I’m talking about your life online. You’re at risk of having your computer taken over so that perfect strangers can read your e-mail‚ access your bank accounts‚ pilfer your credit card numbers‚ and even steal your identity. 2 Listeners Link: Speakers Credibility: As college students‚ we’re particularly vulnerable because we spend
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