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Question: The number of moles of\(H_{2}\) in 0.224 litre of hydrogen gas at STP (273 K, 1 atm.) is...

The number of moles ofH2H_{2} in 0.224 litre of hydrogen gas at STP (273 K, 1 atm.) is

A

1

B

0.1

C

0.01

D

0.001

Answer

0.01

Explanation

Solution

PV=nRTPV = nRT, 1×0.224=n×0.082×273 6mun=0.01mol1 \times 0.224 = n \times 0.082 \times 273\mspace{6mu} n = 0.01mol