Mathematics, 28.06.2019 02:00 caelilou

Achemist needs a solution of tannic acid 70% pure. how much distilled water must he add to 5 gallons of acid which was 90% pure to obtain the 70% solution?

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Achemist needs a solution of tannic acid 70% pure. how much distilled water must he add to 5 gallons...

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