SOLUTION: How many milliliters of pure acid must be added to 150 milliliters of a 70% solution of acid to obtain a 80% solution?
Algebra.Com
Question 458764: How many milliliters of pure acid must be added to 150 milliliters of a 70% solution of acid to obtain a 80% solution?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
150*0.70 + x*1.00 = (150+x)*0.80
==> 105 + x = 120 + 0.80x
==> x - 0.80x = 120 - 105
==> 0.20x = 15
==> x = 75 milliliters of pure acid must be added.
RELATED QUESTIONS
How many milliliters of pure acid must be added to 150 milliliters of a 30% acid solution (answered by stanbon)
how many milliliters of pure acid must be added to 150 milliliters of a 60% solution of... (answered by lwsshak3)
How many milliliters of pure acid must be added to 150 milliliters of a 15% solution of... (answered by stanbon)
How many milliliters of a 40% acid solution must be added to 150 milliliters of a 65%... (answered by ptaylor)
How many milliliters of pure acid must be added to 100 milliliters of a 10% acid solution (answered by ptaylor)
Solve the problem by setting up and solving an appropriate algebraic equation.
How many... (answered by stanbon)
How many milliliters of a 10% acid solution must be added to 55 milliliters of a 80% acid (answered by rapture)
How many millimeters of pure acid must be added to 120 milliliters of a 30% acid solution (answered by checkley77)
How many milliliters of a 12% acid solution and how many milliliters of a 4% acid... (answered by mananth)