UNIVERSITY FACULTY OF SCIENCE DEPARTMENT OF CHEMISTRY GUIDELINES FOR ORGANIC CHEMISTRY NON-MAJORS CHEM 181 By Dr. Haythem Ali Saadeh Fall‚ 2012 Course Title: ORGANIC CHEMISTRY for Non-Majors Course Number: CHEM 181 Prerequisite: General Chemistry Credit Hours: 2 Cr. Hrs. (comprises of 2 hrs. lecture per week) Course Instructor: Dr. Haythem Ali Saadeh h.saadeh@uaeu.ac.ae Textbook: “Organic Chemistry: A Short Course” By Harold Hart‚ Leslie E. Craine
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Alka-Seltzer Rocket Formal Lab Report Abstract In the Alka-Seltzer Rocket lab one was to experimentally determine how much (grams) Alka-Seltzer and water in mL‚ is needed to launch the rocket the highest/longest distance in cm. Also to experimentally determine the % NaHCO3 in the tablet using the information from the highest/longest distance. Calculate the error and % error of NaHCO3 in an Alka-Seltzer tablet and to determine the limiting reagent for the highest/longest distance traveled. Alka-Seltzer
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Preparation of SKEO The extraction of S. khuzistanica was performed by hydro distillation and clevenger apparatus for 5 hours. Once extraction was completed‚ the resulted essential oil was dehydrated using sodium sulfate (Merck). The essential oil was stored at temperature of 4ºC until using (12). In order to provide different concentrations of the extract‚ Dimethyl sulfoxide (DMSO) was used. Gas chromatography/mass spectrometry analysis of essential oil Isolation and measurement of the sample
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Lab Report Marisa McKinney P. 2 Purpose: To investigate the periodic variation of density in Group 4A elements. Background: When the elements are arranged in order of increasing atomic number‚ they exhibit periodic recurrence of properties. Elements in the same group in the periodic table tend to have similar physical and chemical properties. These similarities are due‚ in large part‚ to similarities among the electron configurations of the elements in a group. You can find periodic
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1) Using tweezers remove individual plants from the soil and remove the roots with scissors. Measure the weight of each individual and place in a 1.5 mL microfuge tube. Place this tube directly into liquid N2 to freeze plant tissue. 2) Remove tubes from the liquid N2 and quickly grind the plant tissue with a pestle. Add 300 L of Methanol 1%HCl and continue to grind the plant tissue. Allow extraction to occur overnight in a dark refrigerator. 3) Add 200 L Milli-Q H20 to each tube. Next
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Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 Clear no smell 2 Oil was on top and did not mix with water and it had a slight smell 3 A slight haze look to water with strong smell of vinegar 4 Water turned cloudy with bubbles on top and was the hardest to see through 5 100 ml of water filtered through 60 ml soil resulted in slight brown soil colored water 6 100 ml water
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the net force. During this experiment‚ the objects are two weight hangers with a same origin mass which is 5g and later have total mass is around 2000g. The experiment is performed by transferring mass from one to another hanger and calculates the time the right hanger takes to hit the ground. Then‚ students start to calculate the measured acceleration and predicted one. Objectively‚ the measured acceleration should precisely the same to the predicted one. If yes‚ the experiment is successfully
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Objective: To extract caffeine from tea powder using polar - nonpolar solvent extraction technique. Theory: The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves
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Maria Reyes iLab‚ Week #3 ATOMIC WEIGHT OF MAGNESIUM LAB Introduction The purpose of this lab was to determine the atomic weight of magnesium by measuring the amount of hydrogen gas evolved when hydrochloric acid reacted with magnesium. In order to measure the atomic weight I needed to measure the amount of the hydrogen gas that was evolved in reaction to the acid of the magnesium. The reaction used was: Mg + 2HCl --> H2 + Mg2+ (aq) + 2Cl- (aq). The major findings of this experiment were that
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Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 Water is clear and uncontaminated. 2 All of the vegetable oil goes to the top of the beaker. 3 The water looks slightly cloudy but not too contaminated. 4 The water changed colors with the detergent and was clearly contaminated. 5 Water was murky from the dirt. 6 The water did not look as contaminated filtering with oil as it did with
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