Question

if you weight 0.30g of acetanilide contaminated with sand and we obtain at the end of the recrystallization 0.14 g of the purified material, determine de % of recuperation

Answer 1

Solution :-

Mass of acetanilide sample = 0.30 g

Mass of pure material = 0.14 g

Recuperation percent = ?

% recuperation = [mass of pure material / mass of sample] * 100 %

                           = [0.14 g / 0.30 g] * 100 %

                            = 46.7 %