Question

A chemist has 20% and 50% solutions of acid available. How many liters of each solution should be mixed to obtain 180 liters of 22% acid solution?

Answer 1

22% = 163.63636364 litres.

50% = 409.090909 litres

Explanation:

when 22% acid solutions = 180 litres

then 20% acid solutions = ?

therefore =

`= (20)/(22) * 180 \\ = (3600)/(22) \\ = 163.63636364.litres`

Also when 22% acid solutions = 180 litres

then 50% acid solutions = ?

therefore

`= (50)/(22) * 180 \\ = (9000)/(22) \\ = 409.090909.litres`

therefore 22% = 163.63636364 litres.

50% = 409.090909 litres.