## You need 455 mL of a 5% alcohol solution. On hand, you have a 65% alcohol mixture. How much of the 65% alcohol mixture and pure water will y

Question

You need 455 mL of a 5% alcohol solution. On hand, you have a 65% alcohol mixture. How much of the 65% alcohol mixture and pure water will you need to obtain the desired solution?

You need :

___ ml of pure water

And

___ ml of the 65% solution

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Math
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2021-09-28T04:34:16+00:00
2021-09-28T04:34:16+00:00 1 Answer
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## Answers ( )

Answer:You need:

420 mLpure water and35 mLof the 65% solutionStep-by-step explanation:let 65% alcohol mixture = x mL

y = water

x + y = 455

0.65x / 455 = 0.05

0.65x = 22.75

x = 35

recall, 35 + y = 455

y = 420

You need: 420 mL pure water and 35 mL of the 65% solution