What is the difference between hydrophilic and hydrophobic substances?

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SUMMARY

The discussion clarifies the definitions of hydrophilic and hydrophobic substances, emphasizing that hydrophilic substances are attracted to water, while hydrophobic substances are immiscible with water. It highlights that the interaction is more about water's affinity for these substances rather than a mutual desire to bond. The conversation references insights from Prof. Robert A. Weinberg's video lectures, which provide a deeper understanding of these properties.

PREREQUISITES
  • Basic understanding of chemistry concepts, particularly intermolecular forces.
  • Familiarity with the terms "hydrophilic" and "hydrophobic".
  • Knowledge of water's molecular structure and behavior.
  • Access to educational resources, such as MIT's OpenCourseWare.
NEXT STEPS
  • Watch Prof. Robert A. Weinberg's video lectures on hydrophilic and hydrophobic interactions.
  • Research the molecular mechanisms behind hydrophilic and hydrophobic properties.
  • Explore applications of hydrophilic and hydrophobic substances in real-world scenarios, such as detergents and emulsions.
  • Study the role of these properties in biological systems, particularly in cell membrane formation.
USEFUL FOR

Students, educators, and professionals in chemistry and biology fields who seek to understand the fundamental properties of substances and their interactions with water.

pivoxa15
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hydrophilic substance means it is attracted to water

hydrophobic substance means it is immiscible with water

But the fact is the property of hydrophobic is more to do with water not wanting to bind with them. Not them hating water. They would bind if a drop of them was thrown onto water.

Likewise hydrophilic substance is not they wanting to bind with water but rather water wanting to bind with them. i.e. a drop of hydrophilic substance would form a bead instead of forming a film on the water.

I just thought I would share this strange fact.
 
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It really has no relevance which of the descriptions one chooses to use - they are both almost equally wrong. It has nothing to do with the substances not 'wanting' to be close to the water or the other way around.

Prof. Robert A. Weinberg gives a better view of it in the fourth video lecture, if you want to learn more about it in a visual way http://ocw.mit.edu/OcwWeb/Biology/7-012Fall-2004/VideoLectures/index.htm.
 
Do you know about when in the video he goes to speak about this hydro issue?
 

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