Calculate the mass of calcium chloride formed from 28 grams of calcium oxide.

univerkov | January 17, 2021 | education

Given:
m (CaO) = 28 g
To find:
m (CaCl2)
Decision:
CaO + 2HCl = CaCl2 + H2O
n (CaO) = m / M = 28 g / 56 g / mol = 0.5 mol
n (CaO): n (CaCl2) = 1: 1
n (CaCl2) = 0.5 mol
m (CaCl2) = n * M = 0.5 mol * 111 g / mol = 55.5 g
Answer: 55.5 g

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