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badatmath123

  • 2 years ago

You need a 90% alcohol solution. On hand, you have a 110 mL of a 45% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?

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  1. sheg
    • 2 years ago
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    |dw:1337145943329:dw| it means that you require 10 parts of 45% solution and 45 parts of pure solution

  2. badatmath123
    • 2 years ago
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    I got the answer wrong, I got 500.5 mL of 100% alcohol added for a total of 611 mL of 90% alcohol.

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