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3.2 g of oxygen and 0.2 g of hydrogen ar...

3.2 g of oxygen and 0.2 g of hydrogen 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
Moles of `O_(2) = ( 3.2 )/( 32) = 0.1`,
Moles of `H_(2) = ( 0.2) /( 2) = 0.1`
Pressure, `p = ( n RT )/( V )`
`= ( 0.2 xx 0.082 xx 273 )/( 1.12) = 4 atm`
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