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Kc

Posted: Sun Jan 12, 2020 4:57 pm
by Abigail Menchaca_1H
So solids and aqueous solutions can be used to solve for Kc?

Re: Kc

Posted: Sun Jan 12, 2020 5:07 pm
by KSong_1J
I think you can use aqueous solutions and gases to solve for Kc but you don’t include solids or liquids

Re: Kc

Posted: Sun Jan 12, 2020 5:07 pm
by Jessica Katzman 4F
Kc denotes the equilibrium constant in terms of molar concentrations. Aqueous solutions have concentrations so they are included in the expression, but solids do not so they do not factor into the Kc expression.

Re: Kc

Posted: Mon Jan 13, 2020 12:19 pm
by Justin Quan 4I
To add on, for a homogeneous aqueous mixture, we can simply include all the aqueous species when calculating K or Q. However, if there is a heterogeneous equilibria, chances are there is a solid or liquid species in solution. Hence, you will have to be careful to exclude all liquid and solid species when calculating K or Q.

Re: Kc

Posted: Mon Jan 13, 2020 12:27 pm
by 105335337
Solids & liquids are excluded when solving for Kc. Only gases and aqueous solutions are included.

Re: Kc

Posted: Mon Jan 13, 2020 12:28 pm
by pmokh14B
I think you can use aqueous solutions and gasses, but not solids or liquids.