
Liquid-Liquid Extraction Techniques

Interactive Video
•
Chemistry
•
10th - 12th Grade
•
Hard

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of using a two-phase system in liquid-liquid extraction?
To reduce the volume of the mixture
To enhance the color of the solution
To increase the temperature of the mixture
To separate components based on their solubility
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which tool is essential for separating two immiscible liquids in an extraction process?
Conical flask
Buchner funnel
Measuring cylinder
Separatory funnel
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you determine which layer is the aqueous layer in a separatory funnel?
By using a pH meter
By checking the color of each layer
By measuring the temperature of each layer
By adding a bit of water and observing which layer grows
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of sodium hydroxide in the extraction process described?
To deprotonate benzoic acid
To dissolve 2-methoxynaphthalene
To increase the density of the organic layer
To neutralize the organic solvent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to vent the separatory funnel during mixing?
To cool down the mixture
To prevent the formation of bubbles
To allow the organic layer to evaporate
To release gases produced during the reaction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a drying agent in the extraction process?
To neutralize the pH of the solution
To enhance the color of the solution
To remove residual water from the organic layer
To increase the solubility of the compounds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you ensure that all of the target molecule is transferred during gravity filtration?
By rinsing the flask with more solvent
By increasing the temperature of the solution
By adding more drying agent
By using a larger filter paper
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