0.056dm3
0.224dm3
224.000dm3
56.000dm3
Correct answer is A
Q = 193 x 5 = 965C
40H ↦ 2H2O + O2 + 4e
4 x 96500C = 22.4dm3
965C = x
x = 22.4×9654×96500
= 0.056dm3
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