SOLUTION: Roberto needs a solution that is 30% silver nitrate. He has 12 ounces of a 25% silver nitrate solution. How many ounces of a 40% silver nitrate solution should he add to make a sol
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Question 940543: Roberto needs a solution that is 30% silver nitrate. He has 12 ounces of a 25% silver nitrate solution. How many ounces of a 40% silver nitrate solution should he add to make a solution that is 30% silver nitrate?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ounces of 40% solution to be added
= ounces of silver nitrate in 40% solution
= ounces of silver nitrate in 25% silver nitrate solution
--------------------------
6 ounces of the 40% solution should be added
check:
OK
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