Ответ:
Zn + 2HCl= ZnCl2 + H2
n(HCl) = m(HCl)/M (HCl) = 25/36.5 = 0.7 моль
n(H2) = 0.7/2 = 0.35 моль
m(H2) = n(H2) × M(H2) = 0.7г
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Ответ:
Zn + 2HCl= ZnCl2 + H2
n(HCl) = m(HCl)/M (HCl) = 25/36.5 = 0.7 моль
n(H2) = 0.7/2 = 0.35 моль
m(H2) = n(H2) × M(H2) = 0.7г