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24 January, 19:35

A chemist needs to prepare a solution of 1.7 m nacl. if 400. ml of the solution are required how many grams of nacl are needed? molar mass nacl = 58.5 g/mol

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  1. 24 January, 19:58
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    C=1.7M; M=58.5gmol-¹; V=400ml=400g; m=?

    C=n/V

    but n=m/V

    =>C=m/MV

    =>m=CMV

    =1.7 x 58.5 x 400

    =39780g
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