[JonM843]

I've been stuck on this problem. I just don't understand how to look at problems 2 and 3 at all. I do understand how to get the activity coefficients using the Debye Huckel equation in problem 1, but then it asks to get the Qsp (reaction quotient) for both formulas.

How would I go about finding the reaction quotient and doing problems 2 and 3? Thank you in advance.

[Borek]

And how is Qsp defined? It is just plug and chug.

Do you know what the systematic approach is?