Question

A solution of acetone contains 20 ml. acetone in 980 ml water. calculate the concentration of solution?​

Answer 1

Required Answer:-

Given :

Volume of acetone = 20 ml

Volume of water = 980 ml

To Find :

Concentration of the solution?

Solution :

❒ Volume by volume percentage concentration of solution is defined as the amount of solute in ml dissolved present 100 ml of solution$.$

And we know the formula:

|| ${ \boxed{ \sf{ \frac{v}{V} \% = \frac{volume \: of \: solute}{Volume \: of \: solution} \times 100}}}$||

• Volume of solute = 20 ml
• Volume of solution = 1000 ml.

Then, By using the formula:

⇒ v/V % = 20 ml / 1000 ml × 100

⇒ v/V % = 2 %

Hence :

Concentration of the solution in terms of volume by volume is 2 %.

Answer 2

Answer:

Given :-

• A solution of acetone contains 20 ml and water contains 980 ml.

To Find :-

• What is the concentration of solution.

Formula Used :-

To find concentration of solution we know that,

$\tt{\boxed{\bold{\small{Concentration\: of\: solution\: =\: \dfrac{Volume\: of\: solute}{Volume\: of\:solution} \times 100}}}}$

Solution :-

Given :

• Volume of acetone = 20 ml
• Volume of water = 980 ml

First, we have to the volume of solution,

↦ Volume of solution = 20 ml + 980 ml

➠ Volume of solution = 1000 ml

Hence, we get

• Volume of solute = 20 ml
• Volume of solution = 1000 ml

According to the question by using the formula we get,

$\implies\tt{Concentration\: of\: solution\: =\: \dfrac{20}{1000} \times 100}$

$\implies\tt{Concentration\: of\: solution\: =\: \dfrac{20}{\cancel{1000}} \times {\cancel{100}}}$

$\implies\tt{Concentration\: of\: solution\: =\: \dfrac{\cancel{20}}{\cancel{10}}}$

➦ Concentration of solution = 2 %

$\therefore$ The concentration of the solution is 2 % .