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Question

The number of moles of H2 present in 0.112 L of H2 gas at STP is:


Correct Answer
A
5×103 mol
Your Answer
B
5×102 mol
Your Answer
C
6×103 mol
Your Answer
D
5×104 mol

Solution

The correct option is A 5×103 mol
At STP, 22.4 L is occupied by 1 mole of hydrogen gas.
0.112 L is occupied by 122.4×0.112=5×103 moles.

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