Question

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide

Answer 1

Explanation:

Alright, lets get started.

We have solution of 12 liters which has 8% peroxide solution.

Suppose we add x liters of peroxide in it.

It means mixture will be (x+12) liters.

This mixture should have 16 % of peroxide.

It means

`(x+12)*(16)/(100)=(12*(8)/(100)) +x`

`(x+12)*0.16=(12*0.08) + x`

`0.16x+1.92=0.96+x`

`x-0.16x=1.92-0.96`

`0.84x=0.96`

`x=(0.96)/(0.84)=1.143`

So the answer is 1.143.

1.143 liters peroxide should be added. : Answer

Hope it will help :)