Calculate the mass of the salt formed if 138 g of Zn oxide reacts with sulfuric acid.

univerkov | January 17, 2021 | education

Given:
m (ZnO) = 138 g
To find:
m (ZnSO4)
Decision:
ZnO + H2SO4 = ZnSO4 + H2O
n (ZnO) = m / M = 138 g / 81 g / mol = 1.7 mol
n (ZnO): n (ZnSO4) = 1: 1
n (ZnSO4) = 1.7 mol
m (ZnSO4) = n * M = 1.7 mol * 161 g / mol = 273.7 g
Answer: 273.7 g

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