Question

Calculate the volume of ethanol in 200ml solution of 20% V/V aqueous solution of ethanol

Answer 1

The volume of ethanol is 40ml.

20% v/v means 20ml ethanol in 100ml solution.

Now since, 100ml solution contains 20 ml ethanol.

200ml solution will contain 40ml ethanol.

Mathematical representation - (20/100)*200

= 40ml.

Thus, 40 ml ethanol is present in 200 ml solution.

Answer 2

Explanation:

May it helps you.

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