Equilibrium constants

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Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

Equilibrium constants

Postby Shanzey » Sun Dec 01, 2019 10:15 pm

What does an equilibrium constant (kA) mean? Also, is there a difference between kA and pkA? In addition, when do we know to use this formula in a given problem? Are there any instances of it in the homework?

Kennedi2J
Posts: 101
Joined: Wed Sep 18, 2019 12:20 am

Re: Equilibrium constants

Postby Kennedi2J » Sun Dec 01, 2019 10:19 pm

kA is just the constant for acids. pkA refers to the pH of kA which is just -log(kA).

Shimei_2F
Posts: 100
Joined: Fri Aug 09, 2019 12:17 am

Re: Equilibrium constants

Postby Shimei_2F » Sun Dec 01, 2019 10:27 pm

The equilibrium constant kA is a quantitative measure of the strength of an acid in a solution. The pKa is used to indicate the strength of an acid.

Venus_Hagan 2L
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: Equilibrium constants

Postby Venus_Hagan 2L » Sun Dec 01, 2019 10:35 pm

the formula for kA = [A-][H+] / [AH]. i dont think we need to solve for it in this class but its good to know what it is and what it means


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