9. Use the Nernst equation to find ECl for a cell whose extracellular [Cl-] is 1
ID: 3478543 • Letter: 9
Question
9. Use the Nernst equation to find ECl for a cell whose extracellular [Cl-] is 110 mM and whose intracellular [Cl-] is 5 mM. You may use a calculator. Does your answer match your conclusion in #8 above?
9. Use the Nernst equation to find ECl for a cell whose extracellular [Cl-] is 110 mM and whose intracellular [Cl-] is 5 mM. You may use a calculator. Does your answer match your conclusion in #8 above?
9. Use the Nernst equation to find ECl for a cell whose extracellular [Cl-] is 110 mM and whose intracellular [Cl-] is 5 mM. You may use a calculator. Does your answer match your conclusion in #8 above?
Explanation / Answer
Consider the room temperature to be 37oC .
Nernst equation can be written as
E(ion) = 2.303TR/nF *log [ion] out/ [ion] inside
For n=1 and T= 310
we get E (ion) = 61.5 * log [ion] out/ [ion] inside
= 61.5* log (110/5)
= 61.5 * 1.342
= 82.56 mV
Therefore the E (Cl) is 82.56 mV
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