Blood plasma has the following composition (milliequivalents per litre). Calculate its osmotic pressure at 37oC.Na+=138, Ca2+=5.2, K+=4.5, Mg2+=2.0, Cl−=105, HCO3-=25, PO43−=2.2, SO42−=0.5,Proteins = 16, Others = 1.0

Since for calculating osmotic pressure we require millimoles/litre therefore,Na+=138,Ca2+=5.22=2.6, K+=4.5, Mg2+=2.02=1.0,Cl−=105, HCO3−=25, PO43−=2.23=0.73,SO42−=0.52=0.25, Proteins = 16,others = 1.0Total = 294.08 millimoles/litre⇒294.081000=0.294 moles/litreNow since π=CSTπ=0.294×0.0821×310=7.47 atm