One mole of oxygen gas at STP is equal to

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6.022×1023 molecules of oxygen

6.022×1023 atoms of oxygen

16 g oxygen

32 g oxygen

answer is A.

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Detailed Solution

One mole of oxygen contains 6.022×1023 molecules or 2×6.022×1023 atoms of oxygen.Its weight is equal to molecular weight which is 32 g/mol.

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