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A chemist needs 10 liters of a 25% acid solution. The solution is to be mixed from three solutions whose concentrations are 10%, 20%, and 50%. How many liters should the chemist use to satisfy the following a) Use as little as possible of the 50% solution. 10 ntration

A chemist needs 10 liters of a 25% acid solution. The solution is to be mixed from three solutions whose concentrations are 10%, 20%, and 50%. How many liters should the chemist use to satisfy the following a) Use as little as possible of the 50% solution. 10 ntration

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A chemist needs 10 liters of a 25% acid solution. The solution is to be mixed from three solutions whose concentrations are 10%, 20%, and 50%. How many liters should the chemist use to satisfy the following a) Use as little as possible of the 50% solution. 10% concentration solution in liters 20% concentration solution in 25/3 liters 50% concentration solution in 5/3 liters b) Use as much as possible of the 50% solution. 10% concentration solution in liters 20% concentration solution in liters 50% concentration solution in liters c) Use 2 liters of the 50% solution. 10% concentration solution in 1 liters 20% concentration solution in 7 liters 50% concentration solution in liters
Transcribed Image Text:A chemist needs 10 liters of a 25% acid solution. The solution is to be mixed from three solutions whose concentrations are 10%, 20%, and 50%. How many liters should the chemist use to satisfy the following a) Use as little as possible of the 50% solution. 10% concentration solution in liters 20% concentration solution in 25/3 liters 50% concentration solution in 5/3 liters b) Use as much as possible of the 50% solution. 10% concentration solution in liters 20% concentration solution in liters 50% concentration solution in liters c) Use 2 liters of the 50% solution. 10% concentration solution in 1 liters 20% concentration solution in 7 liters 50% concentration solution in liters
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