SOLUTION: A chemist has a solution which is 60% pure acid and another solution which is 35% pure acid. How many grams of the 35% solution should he use to make 3000 grams of a solution whic

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Question 1035152: A chemist has a solution which is 60% pure acid and another solution which is 35% pure acid. How many grams of the 35% solution should he use to make 3000 grams of a solution which is 50% pure acid?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the number of grams of 35% solution the chemist needs.
Then the number of grams of 60% solution would be 3000-x.
The set up looks like this:
.35x + .60(3000-x) = .50(3000)
Now solve for x...
.35x + 1800 - .60x = 1500
-.25x = -300
x = 1200 grams of 35% solution