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Precalculus Mathematics Homework Help
How much of a 10 liter 30% acid solution must be replaced
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[QUOTE="ducmod, post: 5504124, member: 555461"] [B]Hello! 1. Homework Statement [/B] Please, take a look at the problem and at my solution. Have I done it correctly and is my logic correct? How much of a 10 liter 30% acid solution must be replaced with pure acid to obtain 10 liters of a 50% solution? [h2]Homework Equations[/h2] 3. The Attempt at a Solution [/B] I need to get 10 liters of final solution that contains 5 liters of acid. Let X be the volume of 30% solution, and Y the volume of pure acid. Than: X + Y = 10 0.3 X + Y = 5 I take 0.3X of 30% solution and add Y of acid to get 5 liters of acid. Y = 2.857 Thank you! [/QUOTE]
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How much of a 10 liter 30% acid solution must be replaced
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