How much sulfur will it take to obtain 128 g of sulfur (IV) oxide?

univerkov | September 5, 2021 | education

Given:
m (SO2) = 128 g

Find:
m (S) -?

1) S + O2 => SO2;
2) n (SO2) = m / M = 128/64 = 2 mol;
3) n (S) = n (SO2) = 2 mol;
4) m (S) = n * M = 2 * 32 = 64 g.

Answer: The mass of S is 64 g.

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