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Understanding Q

Posted: Wed Jan 08, 2020 10:23 pm
by briannam_1F
When solving for Q do we omit solids and pure liquids, like when solving for K?

Re: Understanding Q

Posted: Wed Jan 08, 2020 10:28 pm
by Hiba Alnajjar_2C
Yes; when solving for Q, you write the expression in the same exact way you would for K, omitting pure liquids and solids. The central difference between Q and K is that K represents the value at equilibrium, while Q is the ratio of products to reactants at any time during the reaction. But you would solve for the expression and value of Q in the same exact way.

Re: Understanding Q

Posted: Wed Jan 08, 2020 10:33 pm
by Callum Guo 1H
Yes, solving for Q is the same way you would solve for K

Re: Understanding Q

Posted: Wed Jan 08, 2020 10:59 pm
by Daniel Toscano 1L
Q is just ratio of the products and reactants when not in equilibrium, but is calculated the same way as K.

Re: Understanding Q

Posted: Wed Jan 08, 2020 11:41 pm
by BritneyP- 2c
Just solve Q the way you would for K. K is at equilibrium and Q is at any time.

Re: Understanding Q

Posted: Thu Jan 09, 2020 8:34 am
by Maya Pakulski 1D
Yes, you would still omit solids and pure liquids. You also emit these when making an ICE table.

Re: Understanding Q

Posted: Thu Jan 09, 2020 9:34 am
by RichBollini4G
Hiba Alnajjar_2C wrote:Yes; when solving for Q, you write the expression in the same exact way you would for K, omitting pure liquids and solids. The central difference between Q and K is that K represents the value at equilibrium, while Q is the ratio of products to reactants at any time during the reaction. But you would solve for the expression and value of Q in the same exact way.

Thank you!

Re: Understanding Q

Posted: Thu Jan 09, 2020 9:55 am
by Jialun Chen 4F
Correct. We perform the same calculation procedure when solving for Q and K.

Re: Understanding Q

Posted: Thu Jan 09, 2020 10:01 am
by 105335337
Yes. Q and Kc are solved the completely same way. Q is just to tell if the reaction is at equilibrium or not.

Re: Understanding Q

Posted: Thu Jan 09, 2020 11:44 am
by Abigail_Hagen2G
They're solved exactly the same way.

Re: Understanding Q

Posted: Thu Jan 09, 2020 11:48 am
by Juana Abana 1G
Yes, you solve for Q the same way you would solve for K.

Re: Understanding Q

Posted: Thu Jan 09, 2020 3:34 pm
by nicole-2B
You solve for Q the same way you solve for K.

Re: Understanding Q

Posted: Thu Jan 09, 2020 3:54 pm
by bellaha4F
Q tells what point the reaction is at in relation to K, therefore it is solved the same way as K.

Re: Understanding Q

Posted: Thu Jan 09, 2020 4:48 pm
by Astrid Lunde 1I
Yes you can solve Q the same way as you would solve K.

Re: Understanding Q

Posted: Thu Jan 09, 2020 7:06 pm
by 805097738
do you omit pure solids and liquids while solving for K too?

Re: Understanding Q

Posted: Sun Jan 12, 2020 10:34 pm
by Hiba Alnajjar_2C
805097738 wrote:do you omit pure solids and liquids while solving for K too?


Yes, that is correct.

Re: Understanding Q

Posted: Sun Jan 12, 2020 10:51 pm
by Nare Nazaryan 1F
Yes, solving for Q is the same thing as solving for K in terms of calculations (just that the reaction might not have reached equilibrium yet).

Re: Understanding Q

Posted: Sun Jan 12, 2020 11:16 pm
by stephaniekim2K
Q is solved the same way as K, Q is just not at equilibrium.

Re: Understanding Q

Posted: Sun Jan 12, 2020 11:49 pm
by Shrayes Raman
Q is calculated the same exact way as K just it can be anytime during reaction not just during equilibrium

Re: Understanding Q

Posted: Mon Jan 13, 2020 12:37 pm
by 805097738
To solve for Q we have to be given the values of each product and reactant, correct?