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Question

How many number of moles of nitrogen will be present in 2.24 L of nitrogen gas at STP?

A
9.9
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B
0.099
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C
0.001
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D
1.00
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Solution

The correct option is B 0.099
PV=nRT

P=1 atm,T=273 K,V=2.24 L

R=0.0821 L atm K1mol1

n=1×2.240.0821×273=0.099 moles.

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