Verified answer

Ответ:

дано

m(H2SO4) = 98 g

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V(H2)-?

2К+H2SO4-->K2SO4+H2

M(H2SO4) = 98 g/mol

n(H2SO4) = m/M = 98 / 98 = 1 mol

n(H2SO4) = n(H2) = 1 mol

V(H2) =Vm*n = 22.4 * 1 = 22.4 L

ответ 22.4 л

Объяснение: