Polarity

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StudentD2B
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

Polarity

Postby StudentD2B » Thu Nov 22, 2018 9:51 pm

Why does the polarity of water part of the reason why it is a good solvent for ionic compounds? More generally, what role does polarity have in things dissolving?

ElliotPourdavoud 1A
Posts: 36
Joined: Fri Sep 28, 2018 12:16 am

Re: Polarity

Postby ElliotPourdavoud 1A » Thu Nov 22, 2018 11:00 pm

Since water is polar, it has both negative and positive regions in the molecule, the reason this is good for dissolving ionic compounds is that the water molecule and the ionic compound attract each other and thus it dissolves in water, while nonpolar molecules repel away from water and don't dissolve nicely like oil.

StudentD2B
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

Re: Polarity

Postby StudentD2B » Fri Nov 23, 2018 11:19 pm

ElliotPourdavoud 1A wrote:Since water is polar, it has both negative and positive regions in the molecule, the reason this is good for dissolving ionic compounds is that the water molecule and the ionic compound attract each other and thus it dissolves in water, while nonpolar molecules repel away from water and don't dissolve nicely like oil.


is it the water molecule and the ionic compound as a whole or the water molecule and the individual atoms of the ionic compound (i.e: the Na+ and Cl- separately or the NaCl molecular lattice as a whole)

Richard Ku 4H
Posts: 29
Joined: Fri Oct 05, 2018 12:16 am

Re: Polarity

Postby Richard Ku 4H » Sat Nov 24, 2018 12:05 am

The polarity of water results in partial charges on the oxygen and hydrogen atoms. This means they can form electrostatic attractions between the polar solute and water, hence dissolve the particles.

StudentD2B
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

Outline Clarification

Postby StudentD2B » Fri Mar 15, 2019 12:16 am

What does Dr. Lavelle mean in saying " Understand what is mean when kinetics rather than thermodynamics is controlling a reaction."

nicknavejas1B
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Joined: Wed Nov 15, 2017 3:04 am
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Re: Polarity

Postby nicknavejas1B » Sun Jul 14, 2019 11:25 pm

The polar behavior and characteristic of water is what makes solution possible and more efficient!


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