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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Part A: Diffusion on a liquid in a liquid. I did an experiment with three different glasses of tap water from the faucet. All three cups measured the same which happened to be 13 cm from the top of the cup to the bottom of the cup. I let the water settle‚ and sit for about an hour so the temperature was the same for all three cups. I then placed one drop of food coloring into the first glass and waited for the coloring to reach the bottom. I calculated 93 seconds. I then went to the second glass
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Experiment 5 Analysis of Analgesic Tablet by High Performance Liquid Chromatography Abstract An unknown sample‚ 529‚ was tested using high performance liquid chromatography to detect the concentrations of acetaminophen‚ aspirin‚ and caffeine respectively. There was found to be 4.03±0.144mg/100mL of acetaminophen‚ 11.5±0.185mg/100mL of aspirin‚ and 4.89±0.185mg/100mL of caffeine. Based on accepted values‚ the maximum daily amounts of each compound are 4000mg of acetaminophen
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Effect of plant densities and phosphorus levels on the growth and yield of vegetable cowpea (Vigna unguiculata L.) var. Arka Garima K. RAVI KUMAR1 AND V. SUDHA VANI2 Department of Horticulture‚ College of Horticulture‚ Venkataramannagudem-534 101‚ Andhra Pradesh‚ India. E-mail : ravikuna4u@gmail.com ABSTRACT A field experiment was conducted at College of Horticulture‚ Venkataramannagudem to study the effect of plant density and phosphorus levels on the growth and yield of vegetable cowpea
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Value density/ packaging density IBMS 203 Huang Yang 0842317 Value density is defined as the value of a good per pound of weight. For example‚ the value of a pound of diamond which is much higher than the value of a pound of bananas. That is the value density‚ two goods have same size and same weight‚ but they have different values. It is used to determine a product where should be stored and how can it shipped. It can show how important of transportation cost in the total product
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CH.15 Review Questions Growing Tensions Between North and South 1. How did the North and the South differ in the 1840s? In the 1840s‚ the North and the South differed because the North had slaves and the South didn’t. 2. How did Southerners react to the Wilmot Proviso? The way the Southerners reacted to the Wilmot Proviso was that they were mad because the government was taking what Southerners thought was their property. 3. What was Stephen A. Douglas’s role in passing the
Free Compromise of 1850 Slavery in the United States American Civil War
inside a liquid (or fluid) or partially inside‚ appear to be lighter than in air. Objects appear to be less heavy in a fluid or in any liquid because the liquid or water exerts an upthrust on the objects immersed in it. The upward force exerted by a fluid on an object when it is partly or wholly immersed in it is called buoyant force. The Buoyant force is also known as the upthrust. (a) A stone is weighed in air (b) The stone weighs less when immersed in a liquid because of
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The Seven Layer Density Column By Nicia Buttner Grade 8 Table of Contents: Statement of purpose……………………………………. 2 Hypothesis…………………………………………………….. 3 Research……………………………………………………….. 4 Materials………………………………………………………. 5 Procedure……………………………………………………… 6 Observation and results…………………………………. 7 Conclusion…………………………………………………….. 8 Bibliography…………………………………………………... 9 Acknowledgements………………………………………… 10 Page 2 The purpose of this experiment is to compare the different
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acquaint the students with basic laboratory procedures‚ methods‚ and techniques; to introduce the use of basic laboratory measuring devices; to demonstrate different methods of manipulation of numerical quantities. DENSITY AND SPECIFIC GRAVITY Materials and Methods Part 1: Density of an Unknown Solid 1. We first were asked from our laboratory instructor to attain an unknown solid and were asked to note down the number of the solid. 2. Determine the mass of the unknown solid to the
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the virtual lab. Be sure the data table is viewable. Right-click (PC) or Command-Click (Mac) on the table and select print. Part I: Density of Unknown Liquid Trial 1 Trial 2 Trial 3 Mass of Empty 10 mL graduated cylinder (grams) 26.0 Volume of liquid (milliliters) 8.5 Mass od graduated cylinder and liquid (grams) 30.7 Part II: Density of Irregular-Shaped Solid Trial 1 Trial 2 Trial 3 Mass of solid (grams) 39.67 39.25 42.126 Volume of Water (milliliters)
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