Chemistry

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What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution?
(Note: M = mole per Litre)

  • Chemistry -

    You want to dilute it by a factor of .5/.15, or 3.33 times. So you need one part original, 2.33 parts water to dilute.

    What is one part? 250/3.33=75ml
    so you need 75 ml of the original solution. Add 75*2.33=175ml water, stir, and label.

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