# Chemistry

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1000 g of a 50% (mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution. How many liters of water should be added to the starting solution? Please show me the detail answer

• Chemistry -

The dilution formula works as well for percent by mass as it does for molarity and normality.
%1 x grams1 = %2 x grams2.
Calculate grams 2, then subtract mass HNO3 in the 50% soln to see how much water to add.

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