Question

Answer this question.​

Answer 1

Answer:

$</strong><strong> Volume</strong><strong> \: \% \: = \frac{volume \: of \: alcohol}{volume \: of \: solution} \times 100$

$</strong><strong> Volume</strong><strong> \: \% \: = \: \frac{150}{150 + 600} \times 100$

$= \frac{150}{750} \times 100$

$= 20\%$

$</strong><strong> Volume</strong><strong> \: percentage \: = 20 \: \%$

Answer 2

QUESTION:

A solution of alcohol in water has been prepared by mixing 150 ml alcohol with 600 ml of water. Calculate the volume percentage of the solution.

ANSWER:

• Volume percentage = 20%

GIVEN:

• A solution of alcohol in water has been prepared by mixing 150 ml alcohol with 600 ml of water.

TO FIND:

• Volume percentage of the solution.

EXPLANATION:

Here water is in more amount than that of alcohol. So water will be considered as a solvent.

Also given alcohol is mixed in water. This shows that water is a solvent.

Therefore alcohol is the solute as it is less in amount.

$volume \% =\dfrac{volume\ of\ solute}{vol\ of \ solute + vol \ of \ solvent}\times 100$

volume of solute = 150 ml

volume of solvent = 600 ml

$volume \ percentage =\dfrac{150}{150+600}\times 100$

$volume \ percentage =\dfrac{150}{750}\times 100$

$volume \ percentage =\dfrac{1}{5}\times 100$

$volume \ percentage =20\%$

NOTE : Here volume of solute + volume of solvent = volume of solution.