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2 cards from this section. Quick, good the night before a test.
Define a solution and provide an example.
Think of common mixtures you encounter in everyday life.
What is mass percentage and how is it calculated?
Consider how you would express the concentration of a soda drink.
What is the definition of 'colligative properties'?
Think about what properties are affected when more solute is added.
True or False: Raoult's Law applies only to ideal solutions.
Consider the definition of an ideal solution.
You have a solution with a vapor pressure of 50 mmHg at 25°C containing 10 g of non-volatile solute in 200 g of solvent. Calculate the vapor pressure of pure solvent.
Calculate the mole fraction first.
A solution is prepared by mixing two volatile liquids, A and B. If the mole fractions are 0.6 for A and 0.4 for B, and their pure vapor pressures are 80 mmHg and 60 mmHg, calculate the total vapor pressure of the solution.
Remember to use the mole fractions to find the partial pressure contributions.
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