Question

Doreen Schmidt is a chemist. She needs to prepare 32 ounces of a 9% hydrochloric acid solution. Find the amount of

16% solution and the amount of 8% solution she should mix to get this solution.

how many ounces of the 16% acid solution should be in the mixture?

how many ounces of the 8% acid solution should be in the mixture?

Answer 1

See below

Explanation:

She needs 32 ounces finshed product

x = 16 % amount amount of acid = .16x

then (32-x) = 8% amount amount of acid = .08(32-x)

final product 9% acid = .09 (32)

.16x + .08 ( 32-x) = .09(32)

solve for x = 16% amount = 4 ounces 8% then is 28 ounces