Question 1047614
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A laboratory solution is required that is 10% acetonitrile, 25% methanol, and the rest is water. How could you prepare this solution? 
( The total volume is unspecified, so you can prepare any volume you want. )
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Take 1 (one) volume of the pure acetonitrile, 2.5 (two and half) the volume of the pure methanol, and 6.5 (six and half) volumes of water.


Mix it. You are done.