Question

calculate the no of molecule of H2 in 5.6 litre of CH4 gas at STP

Answer 1

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Answer 2

at stp volume or gas is considered as 22.4 l for 1 mole.

you have 5.6 l volume.

that is : 5.6 / 22.4 = 0.25 mole.

1 mole = 6.02 × 10^23 .

therefore for 0.25 mole = 1.5625 × 10^23 is the ans..