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

How many drams of 60% nitric acid must be mixed with how many drams of 75% nitric acid to make 770 drams of a 64% nitric acid solution?

The number of drams of 60% nitric acid needed is drams.

The number of drams of 75% nitric acid needed is drams.