Question
Asked Aug 21, 2019

How much water should be added to sixteen milliliters of ten percent alcohol solution to reduce the Concentration to 8%

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Expert Answer

Step 1

Let x be the amount of water to be added.

The quantity of mixture is 16 ml.

The mixture contains 10% of alcohol solution in it.

That is,

10
10%x 16 x16
100
1
x16
10
=1.6 ml
Thus, the mixture contains 1.6 ml of alcohol solution in it.
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Image Transcriptionclose

10 10%x 16 x16 100 1 x16 10 =1.6 ml Thus, the mixture contains 1.6 ml of alcohol solution in it.

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Step 2

Add some water x to the mixture to reduce the conce...

10%x 16 8%(16+x
1.6 0.08(16 x
1.6 1.28+0.08.x
0.08.x 1.6-1.28
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10%x 16 8%(16+x 1.6 0.08(16 x 1.6 1.28+0.08.x 0.08.x 1.6-1.28

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