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
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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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