Mathematics, 25.01.2021 19:00 Brainly264

A chemist needs to mix a 40% hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixture that is 55% hydrochloric acid. How much of the 70% hydrochloric acid will she need? (don't forget your units) PLEASE HELP ASAP

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A chemist needs to mix a 40% hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixtur...

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