Practice Extraction Methods (1.2) - Analysis Methods

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the main goal of extraction methods?
Show hintHide hint
Think about what you want to do with the analyte.
Question 2.
Name a common solvent used in liquid-liquid extraction.
Show hintHide hint
Recall the solvents mentioned during class.
3Question 3.
What is the purpose of liquid-liquid extraction?
- To mix liquids
- To isolate an analyte
- To dilute samples
Show hintHide hint
Think about what extraction truly does.
4Question 4.
True or False: All solvents used in extraction are safe to dispose of in drains.
- True
- False
Show hintHide hint
Recall which solvents need special attention.
Question 5.
Calculate the recovery percentage when 4 grams of a compound are dissolved in water, and only 3 grams are extracted using dichloromethane.
Show hintHide hint
Use the formula for calculating percentage recovery.
Question 6.
Propose a detailed protocol for dealing with hazardous wastes generated during the liquid-liquid extraction process.
Show hintHide hint
Consider safety and environmental rules.

5 more questions in this section. Enroll free to practise them all.