### Ice table coefficients

Posted:

**Wed Jan 16, 2019 5:36 pm**Is the coefficient of the change row in the ICE table always match the stoichiometric coefficients of the reaction?

Thanks!

Thanks!

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=49&t=40047

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Posted: **Wed Jan 16, 2019 5:36 pm**

Is the coefficient of the change row in the ICE table always match the stoichiometric coefficients of the reaction?

Thanks!

Thanks!

Posted: **Wed Jan 16, 2019 5:42 pm**

Yes.

Posted: **Wed Jan 16, 2019 5:45 pm**

I'm not sure if I'm correct but to get the change row in the ICE table, isn't it always going to be either -x or +x? I haven't encountered a problem where there are coefficients in front of it. But I am also confused on this topic.

Posted: **Wed Jan 16, 2019 7:25 pm**

If you look on the example 5I.3 7th ed on p.419-420 you see in the change portion of the ICE that there can be a +2x or -2x. These come from the stoichiometric coefficients of the chemical equations

Posted: **Wed Jan 16, 2019 7:57 pm**

Are there any differences in solving ICE tables for acid-base reactions and gases? Other than keeping in mind partial pressures

Posted: **Wed Jan 16, 2019 9:06 pm**

For all coefficients in the ICE table, you would follow the stoichiometric coefficients. I think Dr. Lavelle also explained an example in class which used +2x or -2x also.

Posted: **Thu Jan 17, 2019 1:56 pm**

you have to balance the equation and look at the stoichiometric coefficients to determine that value