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11 December, 07:25

If you have 100.0ml of a 30.0% aqueous solution of ethanol, what volume of water is in the solution?

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  1. 11 December, 08:50
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    Solutions containing two substances in the aqueous phase are usually described in volume percentages. Therefore, if a solution has 30% of ethanol, then it has 30% ethanol by volume. The remaining volume is of water, which will be 70%. Calculating:

    70% x 100

    = 70 ml of water in the solution
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