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8 May, 20:14

A solution is 0.0460 m nabr. what is the molarity of the solution if the density is 1.10 g/ml?

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  1. 8 May, 20:29
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    The molarity of NaBr = 0.05036M

    calculationStep1: calculate the total mass

    0.0460 m NaBr has 0.0460 moles NaBr with 1000g of solvent

    therefore the mass of NaBr = 0.0460 moles x 102.89 g/mol = 4.73grams

    total mass is therefore = 4.733 g + 1000 = 1004.73 grams

    step 2:

    use the density to determine the volume

    vol=mass/density

    =1004.73 g/1.10 g/mol=913.39 ml in liters = 913.39/1000=0.91339 L

    now the molarity = moles/vol in liters

    =0.0460 m/0.91339=0.05036 M
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