SOLUTION: A chemistry experiment calls for 20% solution of copper sulfate. Kim has 28
milliliters of 25% solution. How many milliliters of 10% solution should she
add to obtain the require
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milliliters of 25% solution. How many milliliters of 10% solution should she
add to obtain the require
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Question 638369: A chemistry experiment calls for 20% solution of copper sulfate. Kim has 28
milliliters of 25% solution. How many milliliters of 10% solution should she
add to obtain the required 20% solution? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A chemistry experiment calls for 20% solution of copper sulfate. Kim has 28
milliliters of 25% solution. How many milliliters of 10% solution should she
add to obtain the required 20% solution?
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sulfate + sulfate = sulfate
0.25*28 + 0.10x = 0.20(28+x)
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Multiply thru by 100 to get:
25*28 + 10x = 20*28 + 20x
10x = 5*28
x = 14 ml (amt. of 10% solutioin needed)
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Cheers,
Stan H.
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