Calculate the mass of the acid obtained by acid hydrolysis of 50 g of ethyl acetate.

univerkov | June 19, 2021 | education

Reaction equation: CH3COOC2H5 + H2O = CH3COOH + C2H5OH. The reaction takes place in an acidic medium – acid hydrolysis.
According to the table. Mendeleev, we determine the molar masses of ethyl acetate: M = 12 + 3 + 12 + 16 + 16 + 12 * 2 + 5 = 88 g / mol. And acetic acid: M = 12 + 3 + 12 + 16 + 16 + 1 = 60 g / mol.
Let’s find the amount of ether: n = m / M = 50 g / 88 g / mol = 0.568 g / mol.
According to the reaction from 1 mol of ether, 1 mol of acid is obtained, which means n (ether) = n (acid) = 0.568 g / mol.
Find the mass of acetic acid: m = n * M = 0.568 g / mol * 60 g / mol = 34.08 g.

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