3Zn + 2H3PO4 → Zn3(PO4)2 + 3H2
25.9 - 100%
X - 15%
X=3.9г
m (Zn) = 25.9-3.9 = 22г
n(Zn) = m/M = 22/65 = 0.34 моль
n(Н2) = 0.34 моль
V (Н2) = n*Vm = 0.34*22.4 = 7.6 дм3
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3Zn + 2H3PO4 → Zn3(PO4)2 + 3H2
25.9 - 100%
X - 15%
X=3.9г
m (Zn) = 25.9-3.9 = 22г
n(Zn) = m/M = 22/65 = 0.34 моль
n(Н2) = 0.34 моль
V (Н2) = n*Vm = 0.34*22.4 = 7.6 дм3