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How many milliliter of a 20 percent and a 65 percent solutions should you mix together to make 500 milliliter of a 45 percent solution?
Wiki User
∙ 12y ago
222.223 ml @ 20% solution = 44.444 ml
277.777 ml @ 65% solution = 180.555 ml
total = 225 ml out of 500 ml = 45%
Wiki User
∙ 12y ago
Let x be the amount of the 20% solution and y be the amount of the 65% solution. The total volume equation is: x + y = 500. The total amount of the solute equation is: 0.20x + 0.65y = 0.45(500). Solve these two equations to find the amounts of each solution needed.
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