Change in molarity

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JulissaLopez1F
Posts: 12
Joined: Wed Sep 21, 2016 2:57 pm

Change in molarity

Postby JulissaLopez1F » Sun Nov 27, 2016 11:58 am

Why is it that for one example on the course reader we had to calculate the change in concentration but for two other examples we assigned the change an concentration an unknown value, "x"?
Do we always say it's "x" or do we calculate in certain instances and if so, what instances?

Emily_Lenh2A
Posts: 17
Joined: Sat Jul 09, 2016 3:00 am

Re: Change in molarity

Postby Emily_Lenh2A » Sun Nov 27, 2016 2:10 pm

Can you please specify which examples in the course reader you are referencing? I'm a bit confused by what you're asking and it might help me (and others) understand what you're asking.

Aaron_Trell_2J
Posts: 18
Joined: Sat Jul 09, 2016 3:00 am

Re: Change in molarity

Postby Aaron_Trell_2J » Sun Nov 27, 2016 6:17 pm

Typically we only assign "x" to be a change in molarity. "x" is only used if the information we are given is not enough to calculate certain equilibrium values using the equilibrium constant equations. Typically in these cases we end up using the quadratic formula.


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