дано
m(NaOH) = 25 g
V(SO2) - 11.2 L
m(Na2SO3)-?
M(NaOH) = 40 g/mol
n(NaOH) = m/M = 25 / 40 = 0.625 mol
n(SO2) = V(SO2) / Vm = 11.2 / 22.4 = 0.5 mol
n(NaOH)> n(SO2)
2NaOH+SO2-->Na2SO3↓+H2O
n(SO2) = n(Na2SO3) = 0.5 mol
M(Na2SO3) = 126 g/mol
m(Na2SO3) = n*M = 0.5 * 126 = 63 g
ответ 63 г
дано
m(NaOH) = 25 g
V(SO2) - 11.2 L
m(Na2SO3)-?
M(NaOH) = 40 g/mol
n(NaOH) = m/M = 25 / 40 = 0.625 mol
n(SO2) = V(SO2) / Vm = 11.2 / 22.4 = 0.5 mol
n(NaOH)> n(SO2)
2NaOH+SO2-->Na2SO3↓+H2O
n(SO2) = n(Na2SO3) = 0.5 mol
M(Na2SO3) = 126 g/mol
m(Na2SO3) = n*M = 0.5 * 126 = 63 g
ответ 63 г