Question

Question #55b54

Answer 1

`2.1 dm^3`

Explanation:

`12 cm^3=0.012 dm^3` of "0.98 mol dm^-3 H_2 SO _4#

1

Will use the useful formula:

`C=n/V ->0.98=n/0.012 -> n=0.1176 mol`

Then we will use formula again to know how much volume of the first solution will need to prepare the second:

`C=n/V ->0.056=0.1176/V -> V=2.1 dm^3`

`2`

Ww will use the other expression:

`C1*V1=C2*V2`

`0.98*0.012=0.058*V2 ->V2=2.1 dm^3`