Nernst Equation Help Needed

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I'm not sure if this is the right place to put it, maybe someone here can help me with the problems below:

1. Chamber A has a 100 mM solution of KCl. Chamber B has a 1 M solution of KCl. Chamber B is -70 mV relative to Chamber A. What is the net force and direction of K+?
2. What is the net force and direction of Cl-?

1a. 8.5 mV from Chamber A to Chamber B
2a. 131.5 mV from Chamber B to Chamber A


I can calculate the equalibrium potentials just fine, but I can not figure out for the life of me the net force or direction by using the Nernst Equation. However, I can figure out the directionality intuitively, but I still have to get the correct net force to get the problem correct. Answers are hidden (just need to highlight).

I know this seems like a really dumb problem, but I have an exam next week and my prof can't explain it well enough...if that makes any sense. TIA!
 
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