Question

How much of water should be added to 12ml of alcohol as to obtain 12% of alcohol solution ​

Answer 1

Answer:If this is for a math class, then the answer is 88ml. 88ml + 12ml = 100ml, so the mixture is then 12/100 or 12% alcohol by volume.

If this is for a chemistry class, or to be done in reality, then there is not enough information. But certainly more than 88ml will be required due to volume contraction. The alcohol molecules are big; the smaller water molecules fill the spaces between alcohol molecules before the water begins to add volume. It's like adding marbles to a bin of basketballs.

Explanation: