A membrane permeable only to Na+ separates two compartments containing Na2SO4 as shown below
Electrodes are placed in both compartments and a voltage applied (compartment A is held at 0 mV). What voltage applied to compartment B would result in NO net movement of Na+ across the membrane separating the compartments?
A. –60 mV
B. –30 mV
C. 0 mV
D. +30 mV
E. +60 mV
ANS: E
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