12 Questions
What is the property of membranes that allow only solvent molecules to pass through?
Semipermeability
What is the process called when solvent molecules flow from pure solvent to a solution through a semipermeable membrane?
Osmosis
What stops the flow of solvent molecules across a semipermeable membrane into a solution?
Osmotic pressure
In which direction do solvent molecules flow across a semipermeable membrane?
From lower concentration to higher concentration of the solution
What is the excess pressure needed to prevent osmosis through a semipermeable membrane called?
Osmotic pressure
What determines the osmotic pressure of a solution?
Concentration of the solution
What does osmotic pressure depend on?
Number of solute molecules
In the osmotic pressure equation Π = C R T, what does Π represent?
Osmotic pressure
How can the molar mass of a solute be calculated using osmotic pressure?
By using the equation M2 = Π w RT V
Which type of solutions have the same osmotic pressure at a given temperature?
Isotonic solutions
If a solution is hypotonic, what will happen to cells placed in this solution?
Cells will swell
Why is osmotic pressure measurement useful for determining molar masses of biomolecules?
Biomolecules are unstable at room temperature
Test your knowledge on semipermeable membranes, which allow the passage of solvent molecules but hinder larger solute molecules. Explore how these membranes influence the movement of substances between solvents and solutions.
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