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Using rounded atomic masses (N=14, O=16), what is the molar mass of nitric oxide (NO)?

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A) 46 g/mol

B) 14 g/mol

C) 30 g/mol

D) 31 g/mol

Answer: C

Explanation: Molar mass is the sum of atomic masses multiplied by the number of each atom. For NO, add 1×14 + 1×16 to obtain 30 g/mol.

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