дано
m(HCL) = 7.3 g
V(H2)-?
2HCL+Mg-->MgCL2+H2
M(HCL) =36.5 g/mol
n(HCL) = m/M = 7.3 / 36.5 = 0.2 mol
2n(HCL) = n(H2)
n(H2) =0.2 / 2 = 0.1 mol
V(H2) = n(H2) * Vm = 0.1 * 22.4 = 2.24 L
ответ 2.24 л
Объяснение:
дано
m(HCL) = 7.3 g
V(H2)-?
2HCL+Mg-->MgCL2+H2
M(HCL) =36.5 g/mol
n(HCL) = m/M = 7.3 / 36.5 = 0.2 mol
2n(HCL) = n(H2)
n(H2) =0.2 / 2 = 0.1 mol
V(H2) = n(H2) * Vm = 0.1 * 22.4 = 2.24 L
ответ 2.24 л
Объяснение: