Mathematics, 27.03.2020 06:19, sarak2212

You need a 65% alcohol solution. On hand, you have a 50 mL of a 30% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution?

You will need
mL of the 70% solution

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You need a 65% alcohol solution. On hand, you have a 50 mL of a 30% alcohol mixture. You also have 7...