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Mathematics, 24.01.2021 23:30 lashaeperson

A chemist mixes a 40# hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixture thatis 55% hydrochloric acid. How much of the 70% hydrochloric acid acid will she need?

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A chemist mixes a 40# hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixture thati...
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