a, \(n_{khí\left(Cl_2,H_2\right)}=\dfrac{17,92}{22,4}=0,8\left(mol\right)\)
PTHH: 2NaCl + 2H2O \(\xrightarrow[\text{có màng ngăn}]{\text{điện phân}}\) 2NaOH + Cl2 + H2
Theo pthh: \(\left\{{}\begin{matrix}n_{NaOH}=2n_{H_2}\\n_{NaOH}=2n_{Cl_2}\end{matrix}\right.\) và \(n_{Cl_2}=n_{H_2}\)
\(\rightarrow n_{NaOH}=n_{khí}=0,8\left(mol\right)\\ \rightarrow m_{NaOH}=0,8.40=32\left(g\right)\\ V_{H_2}=\dfrac{1}{2}V_{khí}=\dfrac{1}{2}.17,92=8,96\left(l\right)\)