Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

The production of acetanilide involves the treatment of aniline (an aromatic ami

ID: 502549 • Letter: T

Question

The production of acetanilide involves the treatment of aniline (an aromatic amine) with acetic anhydride. This reaction produces an amide called acetanilide and acetic acid (by product). The reaction is as follows: Since aniline is a liquid, conversion from m to grams will yield the equivalence of 4.000 grams of aniline. a. Calculate the theoretical mass of acetanilide produced when the mass of aniline used in the reaction equals to 4.000g The reaction goes 100% to completion and aniline is the limiting reagent. b. If after performing this synthesis the actual mass of acetanilide is 4.420 grams, then what is the percent yield?

Explanation / Answer

From the equation

1 mole of aniline produces one mole of acetanilide ,

that is 93.13g/mol of aniline gives 135.16g/mol of acetanilide

4.00g of aniline gives

= 4.00g x 135.16g/mol / 93.13g./mol

= 5.805 g

Thus theoretical yield of acetanilide = 5.805g

Q2) If the actual yield is 4.42 g

% yield = experimental yield x 100/ theoreticl yield

= 4.42x100/5.805

= 76.14%