Physiology

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Can someone direct me on the question below? I am not sure how to work this problem. Thank you.

Chambers A and B are separated by a membrane. Chamber A contains 15.7 M KNO3 and chamber B contains 10.98 M KNO3. If K+ is in equilibrium across the membrane, what is the electrical (potential) difference (Resting membrane potential)? Which side is electrically positive?

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