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Answer the following chemistry problem. Report the volume to the nearest liter of nitric acid.

How many liters of 85% nitric acid must be mixed with how many liters of 35% nitric acid to make 640 liters of a 68% nitric acid solution?


The number of liters of 85% nitric acid needed is liters.
The number of liters of 35% nitric acid needed is liters.