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23 December, 21:59

How many ml of a 22.5% (v/v) ethanol solution would you need to measure out in order to have 12.5 ml of ethanol?

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  1. 23 December, 22:03
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    Volume percent or volume/volume percent (v/v%) is used when preparing solutions of liquids. It will have units of volume of the smaller composition substance over the volume of the solution. We calculate as follows:

    12.5 mL ethanol =.225 mL ethanol / 1 mL solution (V)

    V = 55.56 mL of the 22.5 % by volume ethanol solution is needed

    Hope this answers the question.
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