Practice - Dilution and Concentration Techniques
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Practice Questions
Test your understanding with targeted questions
What is dilution?
💡 Hint: Think about mixing a concentrated juice with water.
Why is concentration necessary?
💡 Hint: Consider situations where things are too diluted to measure.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of dilution in analytical chemistry?
💡 Hint: Recall the example of making juice less strong.
Is solvent extraction a method to concentrate analytes?
💡 Hint: Consider what happens when you separate oils from water.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You have a 500 mg/L solution of an analyte, and you need to dilute it to 50 mg/L. How much of the solution do you need to take and how much water do you need to add?
💡 Hint: Use the dilution equation again.
After extracting an analyte, you measure its concentration as 2.5 mg/L in a 5 mL extract. What was the original concentration in a 1 L sample if the recovery rate during extraction was 85%?
💡 Hint: Remember to adjust for the recovery rate.
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