Question

A chemist needs 40 liters of a solution that is 20% acid for a certain experiment, but she has

only a solution that is 15% acid and a solution that is 40% acid. How many liters of the 15% and
the 40% solutions should she mix to get what she needs?

Answer 1

10 L total x= 5% 10-x equals 40%Amount of ingredients= Final amount.05x . 40(10- X)=.20(10) solve for ‘x’ The amount Of 5% then 10-x= 40% amount