Question

A solution contains 40 ml of ethanol mixed with 100 ml of water. Calculate the concentration in terms of volume by volume percentage of the solution.

Answer 1

If you want to know about answer you can use formula solute/solution*100

Answer 2

Answer:

The concentration in terms of the volume-by-volume percentage of the solution, ( V/V% ) is $28.57\%$.

Explanation:

Given,

The volume of ethanol ( solute ) = $40ml$

The volume of water ( solvent ) = $100ml$

The concentration in terms of the volume-by-volume percentage of the solution, ( V/V% ) =?

Now,

• The total volume of the solution = volume of solute + volume of solvent.
• The total volume of the solution = $40 +100$ = $140ml$

As we know,

• ( V/V% ) = $\frac{Volume of solute}{Volume of solution}\times 100$
• ( V/V% ) = $\frac{40}{140}\times 100$ = $28.57\%$

Hence, the concentration in terms of the volume-by-volume percentage of the solution, ( V/V% ) = $28.57\%$.