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Mathematics, 18.06.2021 21:40 lovemyboys0404pc662e

You need a 70% alcohol solution. On hand, you have a 420 mL of a 85% alcohol mixture. How much pure water will you need to add to obtain the desired solution?

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You need a 70% alcohol solution. On hand, you have a 420 mL of a 85% alcohol mixture. How much pure...

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