How many grams of oxygen and hydrogen can be produced by electrolysis of 36 grams of water?

How many grams of hydrogen can be produced by fully electrolyzing 4.5 grams of water? What is the volume of this hydrogen at standard conditions? (Density of hydrogen 0.09%/L) How many grams of hydrogen can be produced by complete electrolysis of 4.5 grams of water? What is the volume of this hydrogen at standard conditions? (Density of hydrogen 0.09%/L)

2H2O=2h2+o2
4.5X
36 4
X =0.5g
N=m/M=0.5/2=0.25mol
V = Vm x n =22.4 l/mol x 0.25 mol =5.6 l
By the way, you didn't learn.
I don't understand. Change it.
V=M/P=0.5g/0.09g/l=5.56l

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