Find the amount of copper oxide substance CuO by the formula:
n = m: M.
M (CuO) = 80 g / mol.
n = 16.8 g: 80 g / mol = 0.21 mol.
Let’s find the quantitative ratios of substances.
СuO + H2SO4 → СuSO4 + H2O
For 1 mol of СuO, there is 1 mol of the СuSO4 salt.
Substances are in quantitative ratios 1: 1.
The amount of substance will be equal.
n (CuSO4) = n (CuO) = 0.21 mol.
Answer: 0.21 mol.
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