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Topic: Equilibrium  (Read 3150 times)

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Offline s3a

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Equilibrium
« on: June 14, 2009, 01:19:30 AM »
I attached the question and the answer. What confuses me is after I get 0.0005mol. Why must I divide it by 0.5L in order to get 0.001?!
I think that is the extent of my problem but I'll see if an answer leads me to a perfect solution otherwise I'll post again.

Any help would be GREATLY appreciated!
Thanks in advance!

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Please talk to me like I'm a complete idiot. In other words, don't assume I am a genius when explaining please.
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Offline Astrokel

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Re: Equilibrium
« Reply #1 on: June 14, 2009, 01:33:05 AM »
You have to divide so you can obtain the concentration of the acid. Ka expression is in concentration form so any values input should also be in concentrations.
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Offline s3a

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Re: Equilibrium
« Reply #2 on: June 14, 2009, 01:36:57 PM »
Why do I have to divide by 0.5L in order to obtain the concentration of the carbonic acid though?
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Offline s3a

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Re: Equilibrium
« Reply #3 on: June 14, 2009, 01:58:30 PM »
Oh! Somehow the distilled water is how many litres there is! I am still a little confused as to why the water's volume would account for the volume of the carbonic acid in it's mol/L concentration.

An explanation would be appreciated!
Thanks!
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Offline Borek

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Re: Equilibrium
« Reply #4 on: June 14, 2009, 02:27:35 PM »
What is a definition of molar concentration?
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