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Please help!! A 22.4 L Sample of which of the following substances, at STP, would contain Avogadro’s number of particles?

A. Phosphorus B. Mercury C. Nitrogen

2 Answers

12 votes
I believe that the correct answer is C
User Jetzler
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13 votes
The “22.4 L = 1 mole” principle holds only for gases (and even then, technically only for ideal gases). In any case, the only element given here that would be a gas at STP would be nitrogen. So, the answer would be choice C.
User Adriano Tadao
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