1. The first experiment is Preparation of a Cobalt Amine Bromide Product ; Synthesis #3 was used to create the compound. Added 5 grams of cobalt carbonate to 20 mL of hrdrobromic acid in a beaker. Noticied a slight color change to dark purple. Solution frothed after it settled I mixed in 15mL water and did a gravity filtration. Added the filtrate to a mixture of 2 grams activated charcoal and 25 mL of aqueous ammonia concentrated. Add 6mL of 30% hydrogen peroxide 3-4 drops at a time and heated. Transfered to a beaker and add a boiling solution of 3 mL HBr and 135 mL water.…
"The procedure for this experiment appears on page 14-17 of the Lab manual. To help write this lab report I used the organic chemistry lab manual pages 10-17.…
About 1.55-g of benzil, 1.51-g of dibenzylketone and 12-mL of ethanol were placed in a 50-mL round bottom flask. A magnetic stir bar was also placed in the flask. A condenser was attached to the round bottom flask while the flask was placed in a 70oC hot water bath. The mixture was heated until all solids were dissolved. The temperature of the water bath was then heated to 80oC. A pasture pipet was used to add 2.25-mL of ethanolic potassium hydroxide solution downward through the condenser and into the flask.…
The following experimental procedure was directed from Introduction to Organic Lab Techniques CHM2211L Coursepack by Dr. Edward Kluger found on pages 18- 20.…
Purpose: The purpose of this lab is to carry out an extensive series of reactions based on…
The objective of this laboratory experiment is to observe and record the effect of reactant concentration, reactant surface area and reactant temperature on the overall rate of reaction.…
The procedure for this lab can be found on pages 16 – 30 in “General Chemistry CHE110L Laboratory Manual Fall 2013”.…
Dry, sublimed ferrocene (93 mg) was added to a reaction tube. Later, 0.35 mL of acetic anhydride and 0.1 mL of 85% phosphoric acid were also added. The reaction tube was capped using a septum, and a syringe needle was poked through. This was warmed over a steam bath and stirred for 10 minutes after it began to boil, forming a dark brown color. The tube was then cooled to room temperature, then further cooled in ice. A solution of 0.5mL was added, dropwise w/ mixing. 3M NaOH was added until the pH of the solution was neutral. The product was vacuum filtrated and pressed dry.…
In this experiment two solutions were prepared for two kinetic runs. Solution #1 (50%ethanol 50% water) and Solution #2 (40% ethanol and 60% water) was added to another Erlenmeyer flask. Next, 0.10M of NaOH was filled up to the 0.00ml mark in two 50-ml burettes. Placing the flask containing solution 1 on the magnetic stirrer and clamp a burette containing 0.10M of NaOH above the flask. The two kinetic runs will be carried out one after another. A stir bar was placed into the flask containing solution #1 and 3-5 drops of phenolphthalein indicator solution to the reaction flask. To start the reaction, 4.91x10^-3 mol of alkyl halide to the stirring reaction mixture. The timer was started at the instant of this reaction. When enough HCl formed to neutralize the NaOH that was initially added, the pink color turned clear. The time was recorded.…
The reaction mixture initially was a brown color which then turned a milky white color with the addition of bromobenzene and ether. The mixture turned back to a brown color with the addition of the remaining bromobenzene and ether added at a dropwise rate. The reaction vessel became warm at this point. The mixture then turned a reddish, pink color with the addition of 9.1g benzophenone in 100mL anhydrous ethyl ether. During the reflux the reaction mixture first turned a “pepto bismal” pink color then became a thick white liquid/solid. When the sulfuric acid was added the solution turned a yellow…
Procedure: In this experiment I used a 96-well plate to hold each of the chemical reactions that occurred during this lab. Using a pipet, I added two drops of one chemical with two drops of another chemical and observed the effects of each reaction.…
Cooled the mixture to room temperature and collected the product by suction filtration. Rinsed the product using methanol and allowed product to dry for several minutes.…
I used a different well for each combination of solutions. I placed two drops of one chemical then two drops of a different chemical.…
“As a world view, Darwinism cannot of course be refuted, since Faith is, always has been, and always will be, stronger than facts. “ - Francis P. Yockey…
What is the Captain of the Royal Guard’s name? His name is Chaol Westfall. 2. Why are Celaena’s eyes outstanding?…