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### ice chart

Posted: Tue Jan 22, 2019 9:13 pm
In a question, how are we able to tell when to use and ICE chart??

### Re: ice chart

Posted: Tue Jan 22, 2019 9:33 pm
You will use an ICE chart when given the initial concentration of something (especially a weak acid). You then use the ICE chart to find the concentrations at equilibrium--- these concentrations are used to solve for K.

### Re: ice chart

Posted: Tue Jan 22, 2019 10:14 pm
Typically the problems provide initial molarity or ask for you to calculate the molarity or initial values. I is for initial molarity, C is for change, and E is for equilibrium concentration

### Re: ice chart

Posted: Tue Jan 22, 2019 10:20 pm
For those problems, you are usually given an initial molarity/partial pressure and are asked to find values relating to the equation being at equilibrium

### Re: ice chart

Posted: Tue Jan 22, 2019 10:30 pm
I think the main reason for using an ice chart would be that you are given a weak acid. If you are given a strong acid, there is no need to use one because we can assume that the acid completely dissociates. For a weak acid, on the other hand, it only partially dissociates, which is where an ice chart comes in handy.

### Re: ice chart

Posted: Wed Jan 23, 2019 7:42 am
Technically you could solve a problem without using an ice chart, it's just an easier way to organize and understand the information you are given.

### Re: ice chart

Posted: Wed Jan 23, 2019 11:27 am
ICE charts are useful when working with weak acids which only partially dissociate in solution.

### Re: ice chart

Posted: Wed Jan 23, 2019 3:36 pm
when they give you the initial value of a weak acid.