HOW TO: ICE CHARTS

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Alondra Loera 1A
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HOW TO: ICE CHARTS

Postby Alondra Loera 1A » Fri Dec 04, 2015 12:29 am

This is an overview on filling out and ICE chart.

I - Initial Concentration
C - Change in Concentration
E - Equilibrium Concentration

For I - All the known concentrations should be filled in, for the products it will typically be 0 because no products have been formed. Many equilibrium problems give the initial concentrations of reactants and the equilibrium constant.

For C - Note that the equation will shift in only one direction then indicate an amount (x) that it shifts. Always write the stoichiometric coefficient in front of x and put a minus sign in front of any species for which the concentration decreases and use a plus sign in front of x of any species for which the concentration increases.

For E -The expressions for each species on the E line represent the concentrations of each species at equilibrium, here you can combine the I and C lines. For example if I is 0.750 M and C is -x the E will be 0.750-x.

Using the equilibrium expression then find the numerical value of X and use the value of X to determine the equilibrium concentration of all the species.

Hope this is helpful!

Chem_Mod
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Re: HOW TO: ICE CHARTS

Postby Chem_Mod » Fri Dec 04, 2015 8:58 am

Good explanation. I'm sure many students will find this helpful.


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