Question 523298: A chemist has 1000 g of a solution that is 40% acid. How many grams of water must be added to reduce the acidity to 25% Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A chemist has 1000 g of a solution that is 40% acid. How many grams of water must be added to reduce the acidity to 25%
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Equation:
acid + acid = acid
0.40*1000 + 0*x = 0.25(1000+x)
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Multiply thru by 100 to get:
40*1000 + 0 = 25*1000 + 25x
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25x = 15*1000
x = (2/5)1000
x = 400 grapm(amt. of water needed)
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Cheers,
Stan H.
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