Can someone explain the Nernst equation
Started by polarmolar
I hope so too!
Its so weird because in one place Kaplan has it written with a "log" and the other with "ln" ....?
Its so weird because in one place Kaplan has it written with a "log" and the other with "ln" ....?
As a broad overview:
It is typically used to calculate the resting membrane potential (voltage) of a cell. In excitable cells there are two principle forces in play, concentration and electrical charge. The nernst takes both into account.
By taking the natural log (ln) of a given positive ion concentration outside divided by inside (opposite for chloride or neg charged ions) and multiplying that number by the gas constant R and the absolute temperature in kelvins and then dividing by the faraday constant. If the ion is negative then also divide by negative 1. Answers are typically expressed in mV.
It is typically used to calculate the resting membrane potential (voltage) of a cell. In excitable cells there are two principle forces in play, concentration and electrical charge. The nernst takes both into account.
By taking the natural log (ln) of a given positive ion concentration outside divided by inside (opposite for chloride or neg charged ions) and multiplying that number by the gas constant R and the absolute temperature in kelvins and then dividing by the faraday constant. If the ion is negative then also divide by negative 1. Answers are typically expressed in mV.
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