Biology Isotonic Level
the isotonic concentration of glucose should be twice that of NaCl why?!!!
Original post by rosegirl10
the isotonic concentration of glucose should be twice that of NaCl why?!!!
Should really be in the Study Help section, but I'll bite.
It's due to a difference in osmolarity (Osm/L), which takes into account the dissociation of a compound into its constituent ions. NaCl, dissociates into Na+ and Cl- when dissolving in water. Therefore, when 1M of NaCl dissolves in water, it has an osmolarity of 2M. Glucose cannot further dissociate in a solution. Thus, 1M of glucose has an osmolarity of 1M in water.
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