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2014-10-26T21:33:23+05:30

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Molar mass of sodium = 23g
no. of moles in 34.5 gram of sodium = 34.5/23 = 1.5 moles
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2014-10-26T21:39:16+05:30
No. of moles, n = mass/MW
so substituting for mass and molecular weight
34.5 / 23g/mol = 1.5 mole

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