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14 April, 06:39

How many N2 molecules would exist in 500g of water at 20C?

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  1. 14 April, 06:47
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    We have to know the number of molecules present in 500 g of water.

    The answer is: zero molecules present in 500g of water.

    Water molecule is H₂O. In water molecule, nitrogen molecule can not be present. Molecular mass of water is 18 g. MOlecular mass of nitrogen molecule is 28 g.

    500 g water contains 500/18 number of moles = 27.77 moles of water molecules which contains 27.77 X 6.023 X 10²³ number of water molecules.

    There is no existence of N₂ molecule.
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