Problema Solution
What quantity of 60 percent acid solution must be mixed with a 25 percent acid solution to produce 672 mL of a 50 per cent solution?
Answer provided by our tutors
Let
x = mL of the 60% acid solution
y = mL of the 25% acid solution
We have the following system of equations:
0.60x + 0.25y = 0.50*672
x + y = 672
........
click here to see the system of equations solved for x and y
........
x = 480 mL
y = 192 mL
480 mL of 60% acid solution should be mixed with 192 mL if 25% acid solution.