Osmotic pressure may be used to determine the molecular weight of pure substances. It is an especially useful technique because low concentrations of solute produce relatively large osmotic pressures. Although more sophisticated techniques are now available to determine molecular weight, osmotic pressure is still used occasionally because of its simplicity. Determine the molecular weight of myoglobin (an oxygen storage protein that gives muscle its red color). The osmotic pressure of a 1.0-mL water solution containing 1.5 x 10 ~3 g of the protein was measured at 2.06 x 10 ~3 atm at 25°C.
Osmotic pressure may be used to determine the molecular weight of pure substances. It is an especially useful technique because low concentrations of solute produce relatively large osmotic pressures. Although more sophisticated techniques are now available to determine molecular weight, osmotic pressure is still used occasionally because of its simplicity. Determine the molecular weight of myoglobin (an oxygen storage protein that gives muscle its red color). The osmotic pressure of a 1.0-mL water solution containing 1.5 x 10 ~3 g of the protein was measured at 2.06 x 10 ~3 atm at 25°C.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
Section: Chapter Questions
Problem 71GQ: An aqueous solution containing 10.0 g of starch per liter has an osmotic pressure of 3.8 mm Hg at 25...
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Osmotic pressure may be used to determine the molecular weight of pure substances. It is an especially useful technique because low concentrations of solute produce
relatively large osmotic pressures. Although more sophisticated techniques are
now available to determine molecular weight, osmotic pressure is still used
occasionally because of its simplicity. Determine the molecular weight of
myoglobin (an oxygen storage protein that gives muscle its red color). The
osmotic pressure of a 1.0-mL water solution containing 1.5 x 10
~3 g of the protein
was measured at 2.06 x 10
~3 atm at 25°C.
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