To calculate % yield of 1.3 ml methyl salicylate obtaining 1.0 gm product. Their % yield is 76.92%
2. Suppose you obtain 1.0g of product from the hydrolysis of 1.3 mL of methyl salicylate....
Question 29 0.1/1 point You prepare and isolate methyl salicylate (oil of wintergreen). If you began with 1.4262 g of salicylic acid and obtained 1.2210 g of methyl salicylate, what was the percent yield of your reaction?
Suppose you obtain a mixture of 2-methyl-1-butene (20%) and 2-methyl-2-butene (80%) that equates to 0.2 moles from 0.4 moles of 2-methyl-2-butenel, what is the percent yield of 2-methyl-2-butene? a. 20% b. 40% c. 50% d. 80%
2. Methyl salicylate was reacted with sodium hydroxide amounts shown below: give 1.78 grams of salicylic acid using the Millimoles Used Molar Role Chemical name M Mass Amount (/mol)(mmol) reactant Methyl Salicilate 152.154.6 Sodium reactant hydroxide 6 M solution 45 ml product Salicylic acid 138.121.78g A. Draw the reaction below: B. What is the percent yield of this reaction. C, The melting range for the product is 147 to 154 c. what would you do to improve the purity of...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
What is the theoretical yield of product obtain through the acid catalyzed Dehydration of 2-methyl-2-butanol when 10mL of 2-methyl-2-butanol is reacted with 10mL of Phosphoric acid? Major and minor is not important, just need yield of all product obtained
Create a separation scheme flow chart/diagram to isolate methyl salicylate from a product mixture containing the following: Methyl salicylate, methanol, concentrated sulfuric acid. Lab procedure for separation: Extract with 25mL dichloromethane. Drain the bottom organic layer into a beaker. Repeat the extraction with another 25mL portion of dichloromethane, isolate the bottom layer, and then combine it with the first dichloromethane extract. Pour the combined extracts back into the funnel and wash the solution with 25mL of water. Drain the lower...
1. Write an equation for the base hydrolysis of methyl benzoate by KOH. 2. How many ester groups are in a triglyceride? Give the structure of a triglyceride (triacylglycerol) from you textbook or the lab sheet and put a box around each ester group. 3. If the triglyceride in question 2 underwent base hydrolysis, what 4 products would you obtain? Give the condensed formulas. 4. Which of these products are soaps? (you may circle the ones that are soaps.)
draw a mechanism for methyl 3 benzoate 2. For the nitration of methyl benzoate: Which product did you get? What evidence doyou have for this? Wasyourproduct pure? Whatevidence do you have for this? Explain your a. b. evidence. c. Draw the mechanism for the product you got. d. Calculate percent yield. Show your work
Preparation of Aspirin, Methyl Salicylate and Nylon Experiment #9 Pre-Lab Exercise Briefly describe the difference between an acid and an ester. Give an example of each. 2. Show the chemical reaction for the hydrolysis of the ester, ethyl acetate, indicating the two products of this reaction. 3. Describe what is meant by an amide, showing the structure of at least one example of a compound that is an amide. Be sure to give the correct name of the compound you...
QUESTION 2 1.0g of salicylic acid is allowed to react with 3.0mL of acetic anhydride. The density of acetic anhydride is 1.082g/mL. Use the information to answer the questions that follow: a. Determine the limiting reactant b. Determine the excess reactant c. Calculate the mass of aspirin formed (or the theoretical yield of aspirin). (Express your answer in 2 significant figures). %. (Express d. Calculate the % yield if the mass of aspirin formed (or the theoretical yield of aspirin)...