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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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colleen colleen
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10 years ago
How are molarity and osmolarity different? What property of salts necessitates this distinction? How does this property affect the behavior of water?
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Sunshine ☀ ☼

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10 years ago
Molarity is the number of molecules per liter of solution, while osmolarity is the number of independent particles per liter. The ionization of salt in water illustrates the importance of this distinction: one mole of sodium chloride dissociates to produce a total of two moles of particles (one mole Na+ and one mole Cl-), or two osmoles. Osmosis is diffusion of water. A one molar solution of sodium chloride (two osmolar) produces higher osmotic pressure than a one molar solution of glucose, which does not dissociate.
chritojel
Mastering in Nutritional Biology
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#2
9 years ago
spot on compadre!
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