At equilibrium the concentrations of Cl- inside and outside a cell are 8 mmol/L and 120 mmol/L, respectively. The equilibrium potential for Cl- at 37oC is calculated to be (NOT RELATED)
Nernst equation Ei - Eo = 61/-1 x log10 120/8 = -61 x 1.176 = -71.7 mV inside the cell. Note that for Cl-, the value for z (valence) is -1
+4.07 mV
-4.07 mV
+71.7 mV
-71.7 mV
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