Purpose: The purpose of this experiment was to recrystallize a 95% pure sample of benzoic acid contaminated with approximately 5% salicylic acid using two different methods to determine the melting points and discover the impurities of the substance. Results: After recrystallization of the benzoic acid‚ the starting and ending masses as well as the melting point ranges were determined. This experiment was conducted twice‚ following the same
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Liquid Crystals from Coconut Oil Fatty Acids - Investigatory Project Liquid Crystals from Coconut Oil Fatty Acids Abstract Liquid crystals are fluids that are between the solid and conventional liquid phases. Liquid crystals are in widespread use‚ especially in optical technologies. They are synthesized by combining fatty acids with cholesterol. This study aims to utilize coconut oil as an alternative source of fatty acids for synthesizing liquid crystals since coconut is cheap and abundant
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Diffusion of Hydrochloric Acid into Different Sizes of Agar Blocks Aim: Investigating the relationship between the diffusion and the surface area to volume ratio‚ with agar and hydrochloric acid. Research Question: How does the difference in surface area to volume ratio affect the diffusion? Hypothesis: As the area to volume ratio increases‚ the time taken for a complete diffusion will also increase. Background Information: Agar is a jelly like substance and in this experiment‚ agar
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Gracen Seiler April 7th‚ 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount of
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Date Performed: September 9 ‚2011 SPECTROPHOTOMETRIC DETERMINATION OF THE ACID DISSOCIATION CONSTANT OF METHYL RED M.C. Caligagan ‚M.N.Q. Tolentino and M.Q. Clores Institute of Chemistry‚ College of Science University of the Philippines‚ Diliman‚ Quezon City‚ Philippines Received :September 21‚2011 ABSTRACT This experiment aims to determine the acid dissociation constant value of Methyl Red by means of spectrophotometry. Ten samples were spectrophotometrically analyzed under a UV-Vis
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English Book Report The Electric Kool-Aid Acid Test The Electric Kool-Aid Acid Test is a novel about a the exploration of drug use and the many effects drug use can have on ones life. Ken Kesey‚ the main character volunteered to participate in a drug study advised by the CIA. Ken Kesey is an intelligent young journalist who attends Stanford University‚ and participates in the Creative Writing Program. Ken moves to California‚ where he shares a house with a group called the "Merry
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Exercise 10: Acid-Base Balance: Activity 2: Rebreathing Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. In cases of acidosis‚ the pH of the blood is You correctly answered: c. less than 7.35. 2. Carbon dioxide and water form You correctly answered: a. carbonic acid (a weak acid). 3. Which of the following is true of respiratory acidosis? You correctly answered: c. The amount of carbon dioxide in the blood is greater than normal. 4. Rebreathing You correctly
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The global market for adipic acid is expected to reach USD 7‚240.8 million by 2020‚ according to a new study by Grand View Research‚ Inc. Growing demand for nylon resins and fiber from major end use industries such as automotive and electronics mainly in BRIC nations is expected to remain a key driving factor for the market over the next six years. However‚ volatility in raw material prices coupled with stringent regulations in Europe and North America on account of growing environmental concerns
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Main aim of experiment 5 is to use the biuret test to quantify the concentration of the Bovine Serum Albumin (BSA) then constructing a standard curve graph and to use the spectrophotometer to perform an enzyme assay using different concentration of the BSA. Experiment 5 also verifies the Beer-Lambert Law‚ which is the linear relationship between absorbance and concentration of an absorbing species. Absorbance formula is shown in fig. 1.1. However‚ the Beer-Lambert Law is not obeyed at high concentration
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ingredient in aspirin‚ acetylsalicylic acid‚ is a synthetic derivative of a compound‚ salicin found commonly in willow trees. Ancient Greeks had noted the medicinal effect of willow tree extracts‚ yet its active ingredient salicylic acid was only isolated until the 1800s. However‚ it was strongly acidic making it hard to swallow and caused irritation to the lining of the mouth and stomach. Only later in 1897‚ the process to synthesize an ester of salicylic acid‚
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