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The number of moles of oxygen in 1 L of ...

The number of moles of oxygen in 1 L of air containing `21%` oxygen by volume , under standard conditions , is

A

0.186 mol

B

0.21 mol

C

2.10 mol

D

0.0093 mol

Text Solution

Verified by Experts

The correct Answer is:
D
Volume of `O_(2) = (21)/(100) xx 1L = (21)/(1000) L`, Moles of `O_(2) = (21)/(100 xx 22.4) = 0.0093` moles
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