1500 ml flask contains 400 g O2 and 60 g H2 at 100 degree celcius what is the total pressure in the flask?
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(a) No. of moles of O
2
=
1000×32
400
=0.0125
No. of moles of H
2
=
1000×2
60
=0.03
Partial pressure of O
2
=
1.5
0.0125×0.0821×373
=0.255 atm
Partial pressure of H
2
=
1.5
0.03×0.0821×373
=0.612 atm
Total pressure =0.255+0.612=0.867 atm
I hope this is helpful
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