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

How many quarts of 80% nitric acid must be mixed with how many quarts of 50% nitric acid to make 660 quarts of a 61% nitric acid solution?

The number of quarts of 80% nitric acid needed is quarts.

The number of quarts of 50% nitric acid needed is quarts.