---

Waiting for your responses...

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

How many cups of 55% nitric acid must be mixed with how many cups of 20% nitric acid to make 690 cups of a 33% nitric acid solution?

The number of cups of 55% nitric acid needed is cups.

The number of cups of 20% nitric acid needed is cups.