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Questions and Answers
In the case of amphiphiles in water, how do the molecules orient themselves in a micelle?
In the case of amphiphiles in water, how do the molecules orient themselves in a micelle?
- Hydrocarbon chains face outward
- Hydrocarbon chains face inward (correct)
- Both hydrocarbon chains and polar heads face outward
- Polar heads face inward
What is the term used for the ions attracted to the surface of a micelle that reduce the overall negative charge?
What is the term used for the ions attracted to the surface of a micelle that reduce the overall negative charge?
- Pro-ions
- Counterions (correct)
- Parallel ions
- Anti-ions
At higher concentrations, what type of micelles have an increasing tendency to form?
At higher concentrations, what type of micelles have an increasing tendency to form?
- Cylindrical micelles
- Laminar micelles (correct)
- Reverse micelles
- Spherical micelles
Which type of amphiphile is represented by Cetyl trimethylammonium bromide?
Which type of amphiphile is represented by Cetyl trimethylammonium bromide?
In non-polar liquids, how do amphiphile molecules orient themselves in a micelle?
In non-polar liquids, how do amphiphile molecules orient themselves in a micelle?
What do we call mixtures of two or more amphiphiles in pharmaceutical formulations?
What do we call mixtures of two or more amphiphiles in pharmaceutical formulations?
What are association colloids also known as?
What are association colloids also known as?
What happens when the concentration of amphiphiles is increased?
What happens when the concentration of amphiphiles is increased?
What is the critical micelle concentration (CMC)?
What is the critical micelle concentration (CMC)?
What is the aggregation number of a micelle?
What is the aggregation number of a micelle?
At what point does micelle formation occur in the bulk phase?
At what point does micelle formation occur in the bulk phase?
How does the formation of association colloids compare to lyophilic sols?
How does the formation of association colloids compare to lyophilic sols?
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