## Equilibrium constants

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

### Equilibrium constants

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

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

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

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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