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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: trinhn812 on March 12, 2008, 12:05:48 AM

Title: caculating K with delta G
Post by: trinhn812 on March 12, 2008, 12:05:48 AM
Many biochemical reactions that occur in cells require relatively high
concentrations of potassium ion (k+). The concentration of K+ in muscle
cells is about 0.15 M. The concentration of K+ in blood plasma is about
0.0050 M. The high internal concentration in cells is maintained by
pumping K+ fron plasma. How much work must be done to transport 1.0 mol
of K+ from the blood to the inside of a muscle cell at 37C, normal body
temperature?

So I know work (max) is = delta G.

I'm thinking of using the equation  delta G = -RTln(K)

So does anybody have an idea of how to caculate K? Is it (.15/.0050)?