Water in Acid-Base Equilibria

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J_CHEN 4I
Posts: 54
Joined: Tue Nov 14, 2017 3:01 am

Water in Acid-Base Equilibria

Postby J_CHEN 4I » Wed Jan 15, 2020 7:05 pm

In lecture, the professor went over a question involving the reaction and used the ICE table. Why is the intial value of H2O zero and not 10-7?

Asha Agarwal 1E
Posts: 51
Joined: Fri Aug 30, 2019 12:16 am

Re: Water in Acid-Base Equilibria

Postby Asha Agarwal 1E » Wed Jan 15, 2020 7:22 pm

Water is in such large excess and is the liquid solvent that it is not included in the ICE table at all as it does not effect Ka.

RichBollini4G
Posts: 100
Joined: Wed Sep 18, 2019 12:18 am

Re: Water in Acid-Base Equilibria

Postby RichBollini4G » Wed Jan 15, 2020 7:34 pm

J_CHEN 4I wrote:In lecture, the professor went over a question involving the reaction and used the ICE table. Why is the intial value of H2O zero and not 10-7?

liquids such as water are not included in calculations for Ka or Kb so its not included in the ICE table.

Maya Pakulski 1D
Posts: 105
Joined: Thu Jul 11, 2019 12:17 am

Re: Water in Acid-Base Equilibria

Postby Maya Pakulski 1D » Wed Jan 15, 2020 8:19 pm

Liquids and pure solids are never included in equilibrium calculations.


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