How would I solve for the osmotic pressure? Clinical Chemistry The concentration

Question

How would I solve for the osmotic pressure?

Clinical Chemistry The concentration of Na ions in red blood cells (11.0 mM) and in the surrounding plasma (155.0 mM) are quite different (a) Calculate the electrochemical potential (emf) across the cell membrane as a result of this concentration gradient. (Body temperature is 37.0 Number 0.07 (b) Caiculate the osmotic pressure exerted by the plasma at body temperature (37.0 C) Number 3.94amhoo W Ihe sodium ion concentration in the red blood cells affect osmotic pressure? in the red atm affect osmoic pt

Explanation / Answer

P = MRT

P = 0.155 x 0.082 x 310 = 3.94 atm.

P2 = 0.011 x 0.082 x 310 = 0.2796 atm

Osmotic pressure = 3.94 - 0.2796 = 3.912 atm.

This should be the osmotic pressure, because Na affects the osmotic pressure, so you have to substract that value.

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