Question

What volume of ethyl alcohol and water must be mixed together to prepare 250 ml of 50% by volume of alcohol in water?​

Answer 1

Answer:

60% by volume of alcohol solution means,each 100 ml of solution will have 60 ml ethyl alcohol.

So,250 ml of solution will have

= (60/100) x 250 =150 ml of ethyl alcohol

Hence in a 250ml solution of 60% by volume of alcohol and water,alcohol should be 150 ml and water should be 100 ml.