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3.2 g of oxygen (At. wt. = 16) and 0.2 g...

3.2 g of oxygen (At. wt. = 16) and 0.2 g of hydrogen (At. wt. = 1) are placed in a `1.12 L` flask at `0^(@)C`. The total pressure of the gas mixture will be

A

1 atm

B

4 atm

C

3 atm

D

2 atm

Text Solution

Verified by Experts

The correct Answer is:
B
`n_(O_(2)) = (3.2)/(32) = 0.1`
`n_(H_(2)) = (0.2)/(2) = 0.1`
`P = ((0.1 + 0.1) xx 0.082 xx 273)/(1.12)`
`= (0.2 xx 0.082 xx 273)/(1.12) = 4 atm`
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