Объяснение:
Zn + H2SO4 = ZnSO4 + H2
m (H2SO4) = m (p-pa) * W = 300 * 0,05 = 15
n (Zn) = n (H2SO4) = m : M = 15: (1 * 2 + 32 + 16
4) = 0,153 моль
m (Zn) = n*M = 0,153 * 65 = 9,945 r
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Объяснение:
Zn + H2SO4 = ZnSO4 + H2
m (H2SO4) = m (p-pa) * W = 300 * 0,05 = 15
n (Zn) = n (H2SO4) = m : M = 15: (1 * 2 + 32 + 16
4) = 0,153 моль
m (Zn) = n*M = 0,153 * 65 = 9,945 r