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29 August, 04:22

What mass of koh is needed to make 300.0 ml of 0.725 m koh? what mass of koh is needed to make 300.0 ml of 0.725 m koh? 86.4 g 30.5 g 23.3 g 12.2 g?

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  1. 29 August, 04:25
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    The given values in the problem are:

    .725 M is moles per liter

    300 mL =.300 L

    The solution is:

    56.1 g/mol in 300 ml = 56.1g/mol in. 3L

    M = (x gram/56.1) /.3L

    .725 = (x gram/56.1) /.3L

    Multiply both sides by. 3

    .2175 = x grams/56.1

    x = 12.20 g
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