Question

A chemist has a 30% and a 45% acid solution. What amount of each solution should be used to make 500ml of solution with 35% acidity?

Answer 1

15 percent and 20 percent

Hope this helps!

Answer 2

Answer: The correct answer is 333  1/ 3 ml 30% solution and 166  2/ 3 ml of 45% solution.  

Step-by-step explanation:

Set up 2 equations. Let x be the 30% solution and y be the 45% solution. Then you have x + y =500 and .3x +.45y = .35*500. Then solve the system.