Question

A solution contains 2.5 cm3 of alcohol mixed with 75 cm3 of water. Calculate
the concentration of this solution by volume.
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Answer 1

Answer:

...........................

Answer 2

The concentration of the solution is 3.23%

Explanation:

Given:

Volume of alcohol = 2.5 cc

Volume of water= 75 cc

To find out:

Concentration of the solution

Solution:

We know that concentration of solution (V/V) is given by

concentration = volume of solute / volume of solution

Here alcohol is the solute

The total volume of the solution = Volume of alcohol + Volume of water

                                                    = 2.5 + 75 = 77.5 cc

Thus the concentration of the solution

2.5/77.5  * 100

3.23%

Hope this answer is helpful.

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