Concentration

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Alison Trinh 1E
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

Concentration

Postby Alison Trinh 1E » Sun Jan 12, 2020 10:25 pm

Why do we not use units for concentration?

Eesha Chattopadhyay 2K
Posts: 104
Joined: Fri Aug 09, 2019 12:16 am

Re: Concentration

Postby Eesha Chattopadhyay 2K » Sun Jan 12, 2020 10:29 pm

We use units for concentration, but don't use it for the equilibrium constant.

kendal mccarthy
Posts: 109
Joined: Wed Nov 14, 2018 12:22 am

Re: Concentration

Postby kendal mccarthy » Sun Jan 12, 2020 10:33 pm

Are you talking about Kc? Because Kc itself doesn't have units because it is a constant. But in order to get a correct value for Kc there are units in the equation ([products]/[reactants]) that are represented by brackets, [ ]. These brackets represent molarity or mol/L.

SVajragiri_1C
Posts: 115
Joined: Thu Jul 11, 2019 12:16 am

Re: Concentration

Postby SVajragiri_1C » Sun Jan 12, 2020 10:38 pm

Concentration does have a unit (moles/liter). But, equilibrium constants do not have units.

JesseAuLec1Dis1G
Posts: 52
Joined: Mon Jun 17, 2019 7:23 am

Re: Concentration

Postby JesseAuLec1Dis1G » Sun Jan 12, 2020 10:38 pm

The units aren't used because molarity isn't considered over an amount of time. K is a constant so time is not considered.

Martina
Posts: 111
Joined: Thu Jul 25, 2019 12:16 am

Re: Concentration

Postby Martina » Sun Jan 12, 2020 10:56 pm

You do use units for concentration, but not the equilibrium constant because the units of products over reactants cancel out.

sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

Re: Concentration

Postby sarahsalama2E » Sun Jan 12, 2020 11:00 pm

concentration does have units, moles per liter, but equilibrium constant does not.


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