Chemistry, asked by Shrikrishan5826, 1 year ago

What is the mass of water that on electrolysis gives 16.8 L of gas at NTP?

Answers

Answered by shxrmxla
0

On electrolysis of water the net reaction occurred is represented by the following balanced equation

2H2O(l)→2H2(g)+O2(g)H2andO2

are are produced in 2:1 mol ratio.So the volumetric ratio under same conditions of temperature and prssure will also be 2:1.

Here total volume of electrolytic gas is 16.8L at NTP. So the volume of

H

2

gas produced is

2

3

×

16.8

L

=

11.2

L

at NTP.

The above equation suggests that 2mol or

2

×

22.4

L

H

2

gas is produced from 2moles or 36g water.

So 11.2L

H

2

at NTP will be produced from

36

g

2

×

22.4

L

×

11.2

L

=

9

g

H

2

O

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