6 Questions
What does osmotic pressure measure?
Pressure exerted by the movement of solvent through a semipermeable membrane
What happens to osmotic pressure with an increase in solute concentration?
Osmotic pressure increases
What is the unit of measurement for osmotic pressure?
mmHg (millimeters of mercury)
What is the formula to calculate osmotic pressure?
π = iMRT
How does temperature affect osmotic pressure?
Osmotic pressure increases with an increase in temperature
What is the Van't Hoff factor (i) for a non-electrolyte solute?
1
Study Notes
Osmotic Pressure
- Osmotic pressure measures the pressure required to prevent the flow of water into a solution through a semipermeable membrane.
- As solute concentration increases, osmotic pressure also increases.
- The unit of measurement for osmotic pressure is atmospheres (atm) or pascals (Pa).
Calculating Osmotic Pressure
- The formula to calculate osmotic pressure is: π = iMRT, where π is the osmotic pressure, i is the Van't Hoff factor, M is the molarity of the solution, R is the gas constant, and T is the temperature in Kelvin.
Temperature and Van't Hoff Factor
- Osmotic pressure increases with an increase in temperature.
- For a non-electrolyte solute, the Van't Hoff factor (i) is 1, indicating that the solute does not dissociate in solution.
Test your knowledge of osmotic pressure with this quiz! Learn what osmotic pressure measures and how it changes with an increase in solute concentration. Identify the unit of measurement for osmotic pressure and deepen your understanding of this important concept in chemistry and biology.
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