Question

Q51/80 2.5 litres of alcohol is present in 10 litres of
aqueous solution of alcohol. Volume
percent of alcohol in solution is​

Answer 1

Answer:

20%

Explanation:

$(\frac{Volume of solute}{Volume of solution})$% × 100

$(\frac{2.5}{2.5+10})$% × 100

$(\frac{2.5}{12.5})$% × 100

$(\frac{1}{5})$% × 100

20% ANSWER

Answer 2

Given,

Volume of alcohol is 2.5 litres.

Volume of aqueous solution is 10 litres.

To find,

The volume percent (v/v)of alcohol in solution.

Solution,

In this scenario,the solute is the alcohol and water is the solvent.

Now,to calculate the volume percent (v/v) of the alcohol we need to apply the following mathematical formula :

= 100 × Volume of solute/Volume of solution

= 100 × 2.5 litres/10 litres

= 25 %

Hence,the volume percent (v/v) of alcohol in solution is 25%.