SOLUTION: in a chemistry class 5 liters of a 4% saline solution must be mixed with a 10% solution to get a 6% solution how many liters of the 10% solution are needed

Question 334878: in a chemistry class 5 liters of a 4% saline solution must be mixed with a 10% solution to get a 6% solution how many liters of the 10% solution are needed
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
in a chemistry class 5 liters of a 4% saline solution must be mixed with a 10% solution to get a 6% solution how many liters of the 10% solution are needed
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Equation:
salt + salt = salt
0.04*5 + 0.10x = 0.06(5+x)
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Multiply thru by 100 to get:
4*5 + 10x = 6*5+6x
4x = 2*5
x = 2.5 liters (amt. of 10% solution needed for the mixture)
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Cheers,
Stan H.
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