1. Bayer Extra Strength aspirin tablets each contain 500 milligrams of acetylsal

Question

1. Bayer Extra Strength aspirin tablets each contain 500 milligrams of acetylsalicylic acid. How many total moles of acetylsalicylic acid are present in a bottle of Bayer Extra Strength containing 50 tablets adult aspirin tablets?

2. The density of acetic anhydride is 1.08 g/ml. What is the mass of 2.00 ml of acetic anhydride? How many moles of acetic anhydride are present in a 500.0 ml bottle of acetic anhydride ?

3. In one experiment 4.80 grams of salicylic acid are reacted with excess acetic anhydride (i.e. more than necessary). Calculate the theoretical yield of acetylsalicylic acid in grams .If the actual yield of the reaction was only 5.60 grams of acetylsalicylic acid what was the percent yield for the reaction.

Explanation / Answer

There are multiple questions here. i am allowed to answer only 1 at a time. So I will answer question 1 for you.

1.

molar mass of acetylsalicylic acid = 180 gm

Total acetylsalicylic acid contains = 500 mg * 50 = 25000 mg= 25 gm

Number of moles = mass / molar mass = 25 / 180 = 0.139 mol

Answer: 0.139 mol

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