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A chemist needs to mix 3 liters of 25% hydrochloric acid with 85% hydrochloric acid to obtain a new mixture of 45% hydrochloric acid. How much 85% hydrochloric acid should be added?

A chemist needs to mix 3 liters of 25% hydrochloric acid with 85% hydrochloric acid to obtain a new mixture of 45% hydrochloric acid. How much 85% hydrochloric acid should be added?

Intermediate Algebra
Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter7: Rational Expressions And Functions
Section7.5: Solve Applications With Rational Equations
Problem 7.88TI: For every 1 kilogram (kg) of a child’s weight, pediatricians prescribe 15 milligrams (mg) of a fever...
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8. A chemist needs to mix 3 liters of 25% hydrochloric acid with 85% hydrochloric acid to obtain a new mixture of 45% hydrochloric acid. How much 85% hydrochloric acid should be added? 9. A candlestick maker mixes pure bees wax and regular wax in order to get the candles to burn longer. If the desired mixture contains 34% bee's wax, then how much bee's wax should be added to 33 pints of regular wax? 10. Meatloaf is a mixture of hamburger and breadcrumbs. If you need the mixture to be 80% hamburger, then how many pounds of breadcrumbs should be added to 8 pounds of 90% hamburger? * Previous Next a 99+
Transcribed Image Text:8. A chemist needs to mix 3 liters of 25% hydrochloric acid with 85% hydrochloric acid to obtain a new mixture of 45% hydrochloric acid. How much 85% hydrochloric acid should be added? 9. A candlestick maker mixes pure bees wax and regular wax in order to get the candles to burn longer. If the desired mixture contains 34% bee's wax, then how much bee's wax should be added to 33 pints of regular wax? 10. Meatloaf is a mixture of hamburger and breadcrumbs. If you need the mixture to be 80% hamburger, then how many pounds of breadcrumbs should be added to 8 pounds of 90% hamburger? * Previous Next a 99+
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