Problema Solution
A chemist has a 2% acid solution and an 8% acid solution. He wants to mix the solutions to get 300 ml of a 5.5% acid solution. How many milliliters of each solution does he need?
Answer provided by our tutors
Let
x = ml of the 2% acid solution
y = ml of the 8% acid solution
x + y = 300
0.02x + 0.08y = 0.055*300
........
click here to see the system of equations soled for x and y
........
x = 125 ml
y = 175 ml
The chemist needs 125 ml of the 2% acid solution and 175 ml of the 8% acid solution.