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MCQ
The number of molecules in 4 g of hydrogen gas (H2) is:
Unit-6 Stoichiometry
A 6.022 x 10^23
B 3.011 x 10^23
C 1.2044 x 10^24
D 2.4088 x 10^24
Explanation

4 g H2 = 2 mol, so 2 x 6.022 x 10^23 = 1.2044 x 10^24 molecules.

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