Problema Solution
How much pure acid must be added to 12 ounces of a 40% acid solution in order to produce a 60% acid solution?
Answer provided by our tutors
Let
x = oz of pure acid, x>0
1.00*x + 0.40*12 = 0.60(x + 12)
........
........
x = 6 oz
6 ounces of pure acid must be added.