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What is the mole percentage of O(2) in a...

What is the mole percentage of `O_(2)` in a mixture of 7g of `N_(2)` and 8g of `O_(2)`?

A

`25%`

B

`75%`

C

`50%`

D

`40%`

Text Solution

Verified by Experts

The correct Answer is:
C
Mole percentage of `O_(2)=((8)/(32))/((7)/(28)+(8)/(32))xx100=50`
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Convert in to moles: 12 g of O_2 gas