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Mathematics, 12.03.2021 06:00 kaitlynbrace9742

How many ounces of 20% hydrochloric acid and 70% hydrochloric acid must be mixed to obtain 20 ounces of 50% hydrochloric acid solution?

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How many ounces of 20% hydrochloric acid and 70% hydrochloric acid must be mixed to obtain 20 ounces...
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