Using a graduated cylinder, 10mL of the 0.05mM Procion red dye stock solution were obtained. Then, using a 5mL volumetric pipet, three 10mL volumetric flasks, and distilled water, the three dilutions were prepared. First, a 5mL volumetric pipet was used to put 5mL of the red dye stock solution into the first 10mL volumetric flask. Next, 5mL of distilled water was added to the first 10mL volumetric flask to create was dilution #1. For the second 10mL volumetric flask, 5mL of dilution #1 and 5mL of distilled water were added to created dilution #2.…
The iodide’s position is opposite of the –OH group. Salicylamide and sodium iodide are dissolved in ethanol, and stirred and cooled to 0. After that household bleach was added while stirring vigorously, solution changed from colorless to pale yellow. Sodium thiosulphate and hydrochloric acid were added aswell.…
In this experiment, pinacol was mixed with sulfuric acid, which protonated the pinacol, allowing it to form a better leaving group. Water is the leaving group off of the pinacol and the pinacol becomes a carbocation. The carbocation that is formed is a secondary carbocation so, rearrangement occurs. A methyl shift happens to form a tertiary carbocation, which is more stable than a secondary carbocation. Then, the remaining oxygen forms a double bond causing it to have a positive charge; allowing the carbon that had a positive charge to have a full octet and to be neutral.…
This lab was a two week long lab called the Grignard Reaction lab. The purpose of this lab was to perform the Grignard reaction and to obtain the final product triphenylmethanol from a halide, phenylmagnesium bromide and the starting material, methyl benzoate along with the Grignard reagent. Bromobenzene, magnesium turnings, and anhydrous ether were needed to form the Grignard reagent. To synthesize the reagent, react the reagent with methyl benzoate to form a tertiary alcohol. The objective of the Grignard Reaction lab was to obtain the actual yield of the product, to calculate theoretical and percent yield of the product, and to record the melting point of the product.…
The purpose of this lab was to iodonize salicylamide and characterize the product in order to determine its structure. The crude product of this reaction was recrystallized using ethanol. The white crystalline product was isolated using vacuum filtration and characterized. The percent yield of this reaction was determined to be 39%. The observed experimental melting point of the product was determined to be 235-137 oC. When compared to the literature melting point 228 oC of the predicted product, 5-iodosalicylamide, it can be concluded that the product is very pure.…
When hydrochloric acid was added to the unknown and known solutions, both resulted in no reaction. This also occurred when potassium hydroxide was added to both of the solutions. Barium chloride was then added to the two solutions, which resulted in a cloudy white precipitate from both of the solutions. A cloudy white precipitate also formed when calcium nitrate and ammonium nitrate were added to both the unknown and known solutions. These reactivity tests were conducted in order to establish how the unknown compound would react with acids, bases, and salts.…
There was no color change when NaCl or AgNO3 was added to red dye 1,…
After all of the ferrocene has been collected, place the flask labeled “organic solvent” under the column 13. Repeat Steps 9 through 12, but instead replace hexane with ethyl acetate, and use the sample vial labeled “AF” to collect the orange acetylferrocene. 14. Lastly, the two sample vials are to be evaporated using the rotary evaporator, and then has to be weighed and recorded.…
Following this, the administrator is to add 10 mL of Na2CO3 to the flask containing 20 mL of CaCl2, and 5 mL of the same solution to the flask containing 25 mL of CaCl2. While the administrator is waiting for the precipitate to form from the two mixtures, they should determine if there was a limiting reagent. When these solutions have formed a precipitate, they are to…
MDMA, Molly or Ecstasy, but legally known as Methlysafrylaminc - these are all the same drug. In 1912 this, now illicit substance, was originally developed by a German pharmaceutical company to control bleeding. Some say that it has medical use, while others completely disagree. In the late 1970’s and early 1980’s MDMA had gained a huge following with psychiatrist saying that the drug “enhanced communication” and “opened insights to patients about their problems.…
Chemical Aspects of Digestion Lab Report By Abdulelah Almutairi Animal Form and Function Lab, 03, 12:30 PM Instructor: Melanie Gustafso-Ropski – Lab Assistant: Corinna Monday March 9,2015 1. Part A • The enzyme used in this experiment is pancreatic lipase. The substrate for pancreatic lipase is lipids or triglycerides.…
Another experiment was a mixture of sodium bicarbonate and red phenol to test if the sodium was the cause for the rise in heat. When the two were mixed together there was no increase in heat which leads to the conclusion that the calcium chloride was the cause of the temperature increase. The last lab was a mixture of water and calcium chloride to see if the red phenol was the sole cause for the change in color. There was no color change when the two substances were…
1. If the molarity of the NaOH solution is increased, it would take less drops to observe a colour change. A higher concentration lowers the amount of solution required to produce a reaction due to the presence of more molecules and a higher frequency rate, therefore less of the substance is needed to cause an equilibrium shift. 2.…
b. Add two drops of 6.0M HCl(aq), 0.5mL 10% Hydroxylamine-HCl, six drops 2.0M Sodium Acetate, and 1.0mL 0.1% 2,2-Dipyridyl solution to the test tube. c. Fill the test tube to the 10mL mark with DI water and the color will fully develop in 15 minutes d. Prepare the four other standard solutions with appropriate amounts of the solutions. 9. The sample uses 2.0mL from the volumetric flask with the dissolved Fe and add the appropriate reagents. 10.…