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TONICITY, OSMOTICITY, OSMOLALITY & OSMOLARITY

TONICITY, OSMOTICITY, OSMOLALITY & OSMOLARITY. CHAPTER 18 PP 246-262. B. C. D. NAVIGATING YOUR . A. A. B. C. D. A. A. NAVIGATING YOUR . A. STRUCTURES. MOLECULAR WEIGHTS. EQUIVALENCY WEIGHT. EQUATION. ELECTROLYTES OR NONE. A PENCILE COST $ 0.10 ERASER;......MILLIONS.

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TONICITY, OSMOTICITY, OSMOLALITY & OSMOLARITY

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  1. TONICITY, OSMOTICITY, OSMOLALITY & OSMOLARITY CHAPTER 18 PP 246-262

  2. B C D NAVIGATING YOUR A A

  3. B C D A A NAVIGATING YOUR A

  4. STRUCTURES MOLECULAR WEIGHTS EQUIVALENCY WEIGHT EQUATION ELECTROLYTES OR NONE

  5. A PENCILE COST $ 0.10 ERASER;......MILLIONS

  6. FUNCTIONS • e.g. • TEMPERATURE; • HEART RATE; • BLOOD PRESSURE.

  7. COLLIGATIVE PROPERTIES OSMOTIC PRESSURE BOILING POINT VAPOR PRESSURE FREEZING POINT

  8. C A B

  9. contain the same concentration of solute as an another solution (e.g. the cell's cytoplasm). When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic. Isotonic Solutions

  10. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration. The Osmosis definition :

  11. Osmotic pressure is related to the number of particles.

  12. The pressure required to prevent the movement of molecules of H O is the osmotic pressure. 2

  13. ? FACT THE OSMOTIC PRESSURE OF OUR BODY FLUIDS, EQUIVALENT TO NaCl SOLUTION. 0.9%

  14. WHY NaCl? • WHY ONLY 0.9%? • Where this (0.9%) came from?

  15. Na &Cl are the most plentiful electrolyte in the body. NORMAL HEALTHY HUMAN: Na 138-146 mMol.L-1 Cl 98-109 mMol.L-1 K 3.7-5.3 mMol.L-1 Ca 2.25-2.65 mMol.L-1 WHY NaCl?

  16. WHY ONLY 0.9%? FREEZING POINT -0.52oC

  17. WHY ONLY 0.9%? -0.52oC FREEZING POINT What are the relations between 0.9% and -0.52C?

  18. Mole in gL-1.= - 1.86oC*i XgL-1. - 0.52oC For NaCl 58.5gL-1 = -1.86oC*1.8 XgL-1 - 0.52oC X= 9.086021505376 g L-1.

  19. Wait a where did this equation came from & What it means?

  20. “Volumiegualidi gas nellestessecondizioniditemperatura e dipressionecontengono la stessonumerodimilecole” Amedeo Avogadro Count Lorenzo Romano Amedeo Carlo Avogadro diQuaregna e Cerreto, (TurinAugust 9, 1776 - July 9, 1856)

  21. “Equal volumes of gases at the same temperature and pressure contain the same number of molecules” Amedeo Avogadro AMEDEO AVOGADRO (1776-1856)

  22. AVOGADRO’S NUMBER 6.02x1023

  23. AVOGADRO’S NUMBER THE NUMBER OF PARTICLES IN A SOLUTION OF ONE Kg OF WATER.

  24. Any nonelectrolyte Mole will freeze at -1.86 C

  25. How about electrolyte? FREEZING POINT IS RELATED TO THE NUMBER OF PARTICLES.

  26. Osmol THE WEIGHT IN g . OF A SOLUTE. EQUIVALENT TO A MOLE.

  27. mOsm THE WEIGHT IN mg OF A SOLUTE. EQUIVALENT TO A mMOLE.

  28. Osmol IT IS THE AMOUNT OF A SOLUTE, WHICH WILL PROVIDE ONE AVOGADRO’S NUMBER

  29. i concept

  30. #

  31. BELIEVE IT OR NOT!

  32. Nonelectrolyte(1) Boric acid Dextrose Glycerin Mannitol monks or nuns

  33. Mole in gL-1.= - 1.86oC*i XgL-1. - 0.52oC For Boric acid 61.8gL-1 = - 1.86oC*1 XgL-1 - 0.52oC X= 17.27741935484 g L-1.

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