of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is completed is . (Molar mass in g/mol: N = 14, O = 16, C

Question

of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is  completed is  . (Molar mass in g/mol: N = 14, O = 16, C = 12, H = 1)

Canvas Classes · Accepted Answer

🧠 Acetylation is a  swap
Aniline (, ) reacts with acetic anhydride to give acetanilide (, ). One mole in, one mole out. Reaction is , so no yield loss.

🗺️ Three quick steps
Moles of aniline .
Moles of acetanilide  (same ratio).
Mass of acetanilide .

The question asks for the value in , so .

⚡ Speed scan
 is exactly  times . So you get . Shift the decimal once → .

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