Friday, June 7, 2013

ISOTONIC SOLUTIONS



ISOTONIC SOLUTIONS
 

Isotonic Solutions:

• Isotonic - having the same osmotic pressure as body fluids
• Hypotonic - osmotic pressure is lower than in the body fluids
• Hypertonic - osmotic pressure is higher than in the body fluids


Preparation of Isotonic Solutions:

-     Blood's freezing point is ca. - 0.52oC
-   One-gram mass (M) of no solution decreases temperature by ca. 1.86oC










Example:
What quantity of boric acid is required to arrange isotonic solution?

         1.86(oC)                   61.8(g) /1000(ml)                                                                                             
=  ---------------      =    ---------------------------                                                                                  
         0.52(oC)                    x(g) / 1000(ml)







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