CHEM 1474-E01 Chemistry for Everyday WEEK5 Lab Report Spring 2017 Instructor: Kyoung Nan Kim Office: SI3076 Email: kyoung.kim@ucdenver.edu Office hour: M/W 1:00p-2:30p (SI3076) T/Th 12:30p-1:30p (SI3076) • All communication should be done via school email (xxxx@ucdenver.edu) • The work will be submitted through canvas assignments. You can simply upload doc/pdf files under “Lab report” assignment tap. • Review: Ch2‚ Ch3.5‚ Ch 4.2‚ Ch6.1 and Ch7.1-Ch 7.3 in your text book (21st
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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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Crystal Lewis 9/21/10 Period 1 Carbon Dioxide Carbon Dioxide is the infrastructure of all life on earth. Every human being and animal needs it to survive‚ making it an essential compound. In order to survive‚ humans and animals must give off carbon dioxide to take in oxygen‚ whereas plants must take in the compound and give off oxygen. Carbon Dioxide has numerous unique characteristics‚ properties‚ and safety measures that everyone should be aware of. Being aware of this compound and what it
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Oil Extraction The oil from citrus fruits is loaded with limonene. Extract the oil from the citrus rinds and use it to make insecticides whenever needed. A couple of small drops of citrus oil is all that is required to make insecticide spray. Sprinkling diluted oil around gardens repels pests. Keep the oil on hand and mix insecticides whenever a problem arises. To extract the oil‚ dry and grind the peels and leave them to soak in grain alcohol. Strain the mixture and leave the alcohol to evaporate
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ASSIGNMENT 1 KHANH NGUYEN 1001974 THE NATURAL CARBON CYCLE Carbon dioxide (CO2) is one of the biogeochemical cycles which the fourth most common elements on Earth. It is also a basis of all life and continually cycled and globally existed. Carbon dioxide is obtained from various sources‚ including emissions from volcanoes or industries and combustion products of organic compounds and the respiratory activity of living organisms. Carbon dioxide not only going into the atmosphere through the burning
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Carbon Dioxide from Cars U.S. states are beginning to attack another major source of global warming pollution besides power plants: your car. David Biello reports Cars in California offer a new kind of sticker shock this year: carbon. In addition to the familiar smog ratings‚ labels on new Cali cars rank them 1 to 10 based on greenhouse gas emissions. The best‚ a perfect 10‚ will emit less than 200 grams of greenhouse gases per mile. The bad ones more than 520. Vermont will also begin offering
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Carbon dioxide is the main pollutant that warms our planet Earth. Living things produce carbon dioxide when they breathe. However‚ carbon dioxide is considered to be a harmful pollutant when linked with any vehicle‚ trains‚ power plants‚ as well as other various human activities that involve burning fossil fuels such as gasoline and natural gas. Studies have shown that In the past 150 years‚ such activities have released enough carbon dioxide into the atmosphere to raise its levels higher than they
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Carbon Dioxide is a colorless‚ odorless gas that occurs in small quantities in the earth’s atmosphere naturally. The earth’s ocean‚ soil‚ plants and animals release CO2. The formula of Carbon Dioxide is CO2. The CO2 molecule contains 2 oxygen atoms that each share 2 electrons with a carbon atom to form 2 carbon - oxygen double bonds. The atoms are arranged as so (OHT). This is called a ’linear molecule’. Carbon dioxide is commonly found as a gas and is never a liquid. It sublimes to
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Separation Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method used for the separation
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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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