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

How many drams of 35% carbonic acid must be mixed with how many drams of 10% carbonic acid to make 770 drams of a 27% carbonic acid solution?

The number of drams of 35% carbonic acid needed is drams.

The number of drams of 10% carbonic acid needed is drams.