дано
m(CaCO3) = 40 g
---------------------
V(CO2)-?
2HCL+CaCO3-->CaCL2+H2O+CO2
M(CaCO3) = 100 g/mol
n(CaCO3) = m/M = 40 / 100 = 0.4 mol
n(CaCO3) = n(CO2) = 0.4 mol
V(CO2) = n*Vm = 0.4 * 22.4 = 8.96 L
ответ 8.96 л
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Answers & Comments
дано
m(CaCO3) = 40 g
---------------------
V(CO2)-?
2HCL+CaCO3-->CaCL2+H2O+CO2
M(CaCO3) = 100 g/mol
n(CaCO3) = m/M = 40 / 100 = 0.4 mol
n(CaCO3) = n(CO2) = 0.4 mol
V(CO2) = n*Vm = 0.4 * 22.4 = 8.96 L
ответ 8.96 л