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

How many drams of 30% nitric acid must be mixed with how many drams of 40% nitric acid to make 680 drams of a 32% nitric acid solution?

The number of drams of 30% nitric acid needed is drams.

The number of drams of 40% nitric acid needed is drams.