设生成H2、O2的质量分别是x、y
2 H2O ==通电= 2 H2↑ + O2↑
36 4 32
1000 g x y
36/4 = 1000 g/x,解得x = 111.1 g,即H2质量是111.1 g,体积约1244.4 L(0℃、1个大气压)
36/32 = 1000 g/y,解得y = 888.9 g,即O2质量是888.9 g,体积约622.2 L(0℃、1个大气压)
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