StudyBlue Flashcard Printing of Lab Final 2211L UGA http://www.studyblue.com/servlet/printFlashcardDeck?deckId=... In the distillation experiment, the purpose of a fractionating column was to Which liquid would be most easily separated from water by simple distillation? 1. 1-propanol (bp=97 degrees C) 2. 2-propanol (bp=82 degrees C) 3. tetrahydofuran (bp=65 degrees C) 4.
Emmanuel Omolola Orgo Chem 2 Sec #1 (4-6pm) October 8, 2012 Grignard Reaction with a Ketone: Triphenylmethanol Purpose: The purpose of this exeperiment was to synthesize tripheymethol from a Grignard reagent, phenylmagnesium, bromide, bromobenzene, and benzophenone. Since the Grignard reagent is such a strong nucleophile and base, it is important to prevent water and other protic materials from interfering with Grignard reagent are developed. The experiment involved two reactions. First the Grignard reagent, phenylmagnesiumbromide, was synthesised from bromobenzene, magnesium and diethyl ether. Once produced, the Grignard reagent was then used to synthesise triphenylmethanol by reacting it with benzophenone.
Title: Bromination of (E) – Stilbene (Microscale Procedure) Author’s Name: Reinaldo George Professor: Elvis Barrett Date of Experiment: Thursday July 16th 2015 Institution: Nova Southeastern University Abstract The purpose of this experiment was to synthesize the second intermediate in the b series of Sequential Reactions by carrying out the bromination of (E)-stilbene to obtain meso-stilbene dibromide. This product is the precursor to diphenylacetylene, the next synthetic intermediate in the b series. A further purpose of this experiment is to demonstrate the stereospecific addition of bromine to alkenes. The percentage recovery was also calculated and recorded. On completion of this experiment; my lab partners and I were able to successfully synthesize the second intermediate in the b series of the
Discussion & Conclusion In this experiment we learned how to synthesize the cyclohexene by dehydration of cyclohexanol. We procedure the first step where we have to mix the components. Then we heat the R.B.F with a fractionating column, distilled water. Then we obtained the layers, and we transferred the organic layer to a small, dry Erlenmeyer flask. We added anhydrous Sodium Sulfate as a drying agent.
We used 1g of Na2CO3 -Sodium Carbonate. This would allow for the full precipitate to form. 4) Procedure: Refer to CHE 111 lab manual, experiment Stoichiometry of a Precipitation Reaction on page #104 5) Data / results. We used 1g of Na2CO3 -Sodium Carbonate in combination with 1g CaCl2·2 H2O-Calcium Chloride, Dihydrate to form the precipitate reaction. Na2CO3 aq + CaCl2*2H2O aq = CaCO3 s + 2 NaCl aq + 2 H2O aq Molar Mass: Ca = 40.08 Cl2 = (35.45) x 2 = 70.9 2H2O = (18.02) x 2 = 36.04 40.08 + 70.90 + 36.04 = 147.02 g/mol CaCl2*2H2O Theoretical yield: 1g CaCl•2H2O x 1 mol CaCl•2H2O x 1 mol CaCO3 x 100.09g CaCO3 = 0.68 g CaCO3 147.02g CaCl•2H2O 1 mol CaCl•2H2O 1 mol CaCO3 Mass of weighing dish = 0.6g Mass of filter paper =
INTRODUCTION: This experiment aims to demonstrate liquid-liquid extraction. Chemicals used were 18.0 M Acetic Acid, Toluene, Phenolphthalein and 0.1M Sodium Hydroxide. In this experiment, the process of titration was used in order to determine the amount of acetic acid, which was done in three different procedures (1 trial each). The calculations took place right after accomplishing all
Bradley Cadet 3/3/14 Lab 3 – Complex Formation – Determination Of Chloride Introduction: Experimental Procedure: Apparatus: * One 250 mL beaker * Three 150 mL beakers * Paper towels * Three stirrer bars * Weighing balance * 25mL and 10mL pipettes * 50mL graduated cylinder * Magnetic Stirrir Reagents: * NaCl * AgNO3 * K2CrO4 (0.1M) indicator * Unknown chloride salt (labeled) * Deionized Water * Sodium Chloride Hazards: Procedure: For the first part of the procedure, we had to weigh 4.25 grams of silver nitrate (AgNO3) and dissolve it into 250 mL of deionized water. This was done in a cleaned 250mL beaker. Afterwards, we were given an amount of sodium chloride to extract three samples of 0.1000 grams of pure sodium chloride into 3 different cleaned 150 mL beakers. To each beaker that contained the samples of pure sodium chloride, we added 25 mL of deionized water. To dissolve the sodium chloride in the deionized water, we placed a magnetic stirrer into each beaker and placed it on the electric stirrer.
Samuel Colt invented the first revolver - named after its revolving cylinder. He was issued a U.S. patent in 1836 for the Colt firearm equipped with a revolving cylinder containing five or six bullets with an innovative cocking device Modern Assault Rifles - M16 HistoryThe history of the modern assault rifle begins with the German Sturmgewehr used during WW2, the first rifle that could fire a medium size bullet at high rates of fire. In response the U.S. military began developing their own assault rifle, the result was the M16 assault rifle, first issued to American Soldiers in Vietnam in 1968 and designed by Eugene Stoner, a Marine Corps Veteran. The Johnson RifleThe Johnson Model 1941 Rifle one of the most innovative rifles of its time period. The Johson rifle was invented by Melvin M. Johnson
CVS Caremark is designing a global expansion strategy to target areas that are profitable and promising demographically. CVS Caremark will select United Kingdom as a country to enter and establish a solid relationship. Background of company and of country CVS Pharmacy was established over 40 years ago in 1963 in Lowell, Massachusetts by Sid Goldstein, Stanley Goldstein and Ralph Hoagland and originally sold health and beauty products. The corporation headquarters is currently in Woonsocket, Rhode Island and employs over 200,000 as of December 2012. In the last 40 years CVS has experienced tremendous growth.
Martin had an enormous effect in social America. He led a massive protest in Birmingham, Alabama that was noticed world wide. In 1963, Dr. King directed a peaceful march in Washington D.C. when he delivered the speech, “I have a dream…” He was also named Man of the Year by Time Magazine in 1963. Martin led a social reform movement for civil rights that unified the middle class African-Americans. At age thirty-five, Martin Luther King, Jr. was the youngest man to receive the Nobel Peace Prize.