The concentration of K^(+) inside a biological cell is at least 20 times higher than the outside. The resulting potential difference across the cell is important in several processes such as transmission of nerve impulses and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is: M(s)|M^(+)(aq,0.05M)||M^(+)(aq,1M)|M(s) For the above galvanic cell the magnitude of the cell potential |E_("cell")|=70mV. If the 0.05 M solution of M^(+) is replaced by 0.0025 M M^(+) solution, then the magnitude of the cell potential would be

The concentration of K^(+) inside a biological cell is at least 20 tim

1.	The concentration of K^(+) inside a biological cell is at least 20 times higher than the outside. The resulting potential difference across the cell is important in several processes such as transmission of nerve impulses and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is: M(s)\|M^(+)(aq,0.05M)\|\|M^(+)(aq,1M)\|M(s) For the above galvanic cell the magnitude of the cell potential \|E_("cell")\|=70mV. If the 0.05 M solution of M^(+) is replaced by 0.0025 M M^(+) solution, then the magnitude of the cell potential would be
Answer» 35 mV 70 mV 140 mV 700 mV Solution :`(2.303RT)/F"log"1/0.05=0.07,(2.303RT)/F=0.0538`. Then APPLY again the Nernst EQUATION.