дано
n(Zn) = 3 mol
V(H2)-?
Zn+2HCL-->ZnCL2+H2
3n(Zn) = 1n(H2)
n(H2) = 1/3 = 0.33 mol
V(H2) = n(H2)*Vm = 0.33 * 22.4 = 7.4 L
ответ 7.4 л
m(Ca) = 15 kg
V(H2) = ?
Ca+2HCL-->CaCL2+H2
M(Ca) = 40 kg/kmol
n(Ca) = m/M = 15 / 40 = 0.375 mol
n(Ca) = n(H2) = 0.375 mol
V(H2) = n(H2) * Vm = 0.375 * 22.4 = 8.4 L
ответ 8.4 л
дано
n(Zn) = 3 mol
V(H2)-?
Zn+2HCL-->ZnCL2+H2
3n(Zn) = 1n(H2)
n(H2) = 1/3 = 0.33 mol
V(H2) = n(H2)*Vm = 0.33 * 22.4 = 7.4 L
ответ 7.4 л
дано
m(Ca) = 15 kg
V(H2) = ?
Ca+2HCL-->CaCL2+H2
M(Ca) = 40 kg/kmol
n(Ca) = m/M = 15 / 40 = 0.375 mol
n(Ca) = n(H2) = 0.375 mol
V(H2) = n(H2) * Vm = 0.375 * 22.4 = 8.4 L
ответ 8.4 л