how many ml of 40 percent acid should be added to pure acid to make 70ml of 65 percent acid?

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02-07-2022
Mathematics

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how many ml of 40 percent acid should be added to pure acid to make 70ml of 65 percent acid?

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ShubhamchouhanvrVTidn ShubhamchouhanvrVTidn · Answer 1 · 2022-07-05T05:27:45-04:00

The amount of the acid will be equal to 113.75 Ml.

What is concentration?

Concentration in chemistry is calculated by dividing a constituent's abundance by the mixture's total volume.

In chemistry, to solve this kind of exercise, dilutions, and concentrations are common to use the following equation

C1 x V1 = C2 x V2

V1 refers to volume 1, in this case, is 70mL because is the quantity I have, the solution I can use to obtain another solution. C1 refers to the concentration of the solution I also have, in this case, 65%.

C2 and V2 refer to the volume and concentration of the solution I am looking for. So, if want to know V2, which is the volume I need to add, the only thing to do is find V2 in the equation:

V2 = ( C1 x V1 ) / C2

V2 = ( 65% x 70mL) / 40%

V2 = 113.75 Ml.

Therefore the amount of the acid will be equal to 113.75 Ml.

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What is concentration?

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