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Question

14 g of N2 contains 3.01×1023 nitrogen molecules. If true then enter 1, if false enter 0.

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Solution

Answer: True (1)

Mass of one mole N2 = 1×molar mass = 1×(2×14) = 28 g

Number of molecules in one mole of N2 or 28 g N2 = Avogadro Number of molecules = 6.023×1023 molecules

Number of molecules in 14 g N2 = 6.023×10232 = 3.01×1023 molecules

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