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

The concentration of potassium ions inside a biological cell is at lea

1.	The concentration of potassium ions inside a biological cell is at least twenty times higher than the outside. The resulting potential difference across the cell is important in serveral processes such as transmission of nerve impules and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is : M_((s))\|M^(+)(aq, 0.05" molar")\|\|M^(+)(aq, 1" molar")\|M_((s)) For the above electroltic cell, the magnitude of the cell potential \|E_(cell)\|=70 m V. If the 0.05 molar solution of M^(+) is replaced by a 0.0025 molar M^(+) solution, then the magnitude of the cell potential would be :
Answer» 35 MV 70 mV 140 mV 700 mV Solution :(c ) `E_(cell(2))-E_(cell)^(@)-(0.059)/(1)"log"((0.0025)/(1))` `=-0.059 log (0.0025)` `E_(cell(1))=70 mV` `implies (E_(cell(2)))/(E_(cell(1)))=(log(0.0025))/(log(0.05))=(-2.6)/(-1.3)~~2` `implies E_(cell(2))=70xx2=140 mV`.