i So Tonicity

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  ISOTONICITY    ISOTONICITY    Body fluids, including blood and tears, have the same osmotic pressure as that of a 0.9% w/v sodium chloride solution.  Solutions having the same osmotic pressure as that of 0.9% w/v NaClsolution are said to be isotonic with blood.  Solutions with a higher osmotic pressure than body fluids are called hypertonic and those with a lower osmotic pressure are called hypotonic .  Isotonic solutions calculations :   CALCULATION OF DISSOCIATION ( i ) FACTOR  Since osmotic pressure depends upon the number of particles of solute(s) in solution, the osmotic pressure of an electrolyte is directly proportional to the degree (or extent) of dissociation.  The dissociation factor, symbolized by the letter i, can be calculated by dividing the total number of particles (which include undissociatedmolecules and ions) in a solution by the number of particles before dissociation, i.e.,  CALCULATION OF DISSOCIATION ) FACTOR


Jul 23, 2017
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