Question:
You need 330 mL of a 90% alcohol solution. On hand, you have
Last updated: 7/16/2022
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You need 330 mL of a 90% alcohol solution. On hand, you have a 70% alcohol mixture. How much of the 70% alcohol mixture and pure alcohol will you need to obtain the desired solution? You will need and mL of the 70% solution mL of pure alcohol.