下列是爱迪生电池分别在充电和放电时发生的反应:Fe+Nio2+2H2O=Fe(OH)2+Ni(OH)2,消耗0.54gH2O时,电解0.01molCuSO4和0.01molNaCl混合溶液100mL,两极气体标况下总体积是A:0.168L B:0.224L C:0.336L D:0.672L

问题描述:

下列是爱迪生电池分别在充电和放电时发生的反应:Fe+Nio2+2H2O=Fe(OH)2+Ni(OH)2,消耗0.54gH2O时,电解0.01molCuSO4和0.01molNaCl混合溶液100mL,两极气体标况下总体积是
A:0.168L B:0.224L C:0.336L D:0.672L

n(H2O)=0.54/18=0.03mol;n(转移电子)=0.03mol
n(H2)=n(Cl2)=0.005mol;
n(O2)=0.01/2=0.005mol;
V=22.4*0.015=0.336L