Osmolarity And Osmolality
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QUESTION
What is the ideal osmolarity contribution of
1
1
1
mmol/L of CaCl
2
_2
2
assuming full dissociation?
QUESTION
What is the definition of osmolarity in terms of osmoles and solution volume?
QUESTION
Calculate osmolarity for
0.15
0.15
0.15
M NaCl (assume
i
=
2
i=2
i
=
2
). What is the osmolarity?
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ANSWER
0.30
0.30
0.30
Osm/L (=
300
300
300
mOsm/L). NaCl dissociates into two ions (
i
=
2
i=2
i
=
2
), making osmolarity twice the molarity, resulting in
0.30
0.30
0.30
Osm/L.
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