Question

calculate the volume of ethanol in 200ml solution of 20%v/v aqueous solution of ethanol​

Answer 1

Answer:

The answer is quite simple.

Step-by-step explanation:

Since you are given v/v % and you have to calculate volume only. So, just find out the percentage of ethanol in 200 ml of solution.

i.e., 20/100×200 = 40 ml.

Therefore 40ml of ethanol(C2H5OH) is present in that solution.

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Answer 2

The answer is 40 ml

GIVEN

Total volume of the solution = 200 ml

Volume by volume percentage of ethanol = 20%

TO FIND

Volume of ethanol.

SOLUTION

We can simply solve the above problem as follows;

We are given;

Total volume of the solution = 200 ml

Volume by volume percentage of ethanol = 20%

This means that,

The volume of ethanol in In 100 ml of solution = 20 ml.

Therefore,

Volume of ethanol in 200 ml of solution = (100/20)×200 = 40 ml

Hence, The answer is 40 ml

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