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Worksheets#23-29 Colligative Properties
Total questions: 21
Worksheet time: 26mins
What is the method used for separating a mixture based on size?
Distillation
Chromatography
Filtration
Sorting or Magnets
What is the method used for separating a mixture based on differences in boiling points?
Oil Drop Test
Distillation
Titration
Chromatography
What is the method used for separating mixtures based on differences in solubility?
Chromatography
Sorting or Magnets
Distillation
Cathode Ray Tube
What is true of a heterogeneous mixture?
Not uniform in composition and you can see the different parts
Components are uniformly distributed
The entire mixture looks the same
Mixed evenly, molecule by molecule, thus too small to see the different parts
What is true of a homogeneous mixture?
Not uniform in composition
Suspensions are a type of homogeneous mixture
Components are uniformly distributed
The entire thing does not look the same
What can suspensions often be separated by due to their large particle size?
Distillation
Filtration
Titration
Sorting and Mixing
What is true of a suspension?
A type of heterogeneous mixture where when precipitates form a mixture of aqueous solutions, it is created with the solid precipitate settling out in an aqueous medium
A type of homogeneous mixture that are small in particle size so the particles neither settle nor dissolve in the greater medium
What is true of a colloid?
Can often be separated by filtration
Have small particle sizes that cannot be separated by filtration
What is the ability of a colloid being able to scatter light called?
Resonance Effect
Inductive Effect
Electronic Effect
Tyndall Effect
Which of the following are an example of a colloid?
Rain
Fog
Snow
Sleet
In an aqueous solution, what is the solution process based on?
Kg of Solvent
Mol of Solute
Polarity of Water
Size of particles
Which of the following is true of the solution process?
When an ionic compound is placed in water, the positive ions are attracted to the partially negative oxygen in the water and the negative ions are attracted to the partially positive hydrogen in the water
When an ionic compound is placed in water, the positive ions are attracted to the partially positive oxygen in the water and the negative ions are attracted to the partially negative hydrogen in the water
What is true of an electrolytic solution?
The solution is heterogeneous
The solution can conduct an electrical current
The solution is homogeneous
The solution is a colloid
What is true of a saturated solution and where will it fall on a solubility graph?
The solution is in equilibrium with the undissolved solute and will fall on the line of the desired compound
The solution can still hold more solute and will fall under the line of the desired compound
The solution can hold more solution than it normally would and falls above the line of the desired compound
What is true of an unsaturated solution and where will it fall on the graph of solubility?
The solution can hold more solution than it normally would and falls above the line of the desired compound
The solution is in equilibrium with the undissolved solute and will fall on the line of the desired compound
The solution can still hold more solute and will fall under the line of the desired compound
What is true of an supersaturated solution and where will it fall on the graph of solubility?
The solution can still hold more solute and will fall under the line of the desired compound
The solution can hold more solution than it normally would and falls above the line of the desired compound
The solution is in equilibrium with the undissolved solute and will fall on the line of the desired compound
If 4.27 g sucrose (C12H22O11) are dissolved in 15.2 g water, what is the boiling point of the resulting solution? Kb for water = 0.512°C/m.
ΔTb = Kb x m.
101.64°C
100.42°C
99.626°C
100.73°C
A 4.305-g sample of a nonelectrolyte is dissolved in 105 g of water. The solution freezes at -1.23°C. Calculate the molar mass of the solute. Kf for water = 1.86°C/m.
ΔTf = Kf x m.
39.7 g/mol
58.4 g/mol
46.2 g/mol
62.0 g/mol
The vapor pressure of pure water at 85 oC is 434 mm Hg. What is the vapor pressure of water if 100. g of water &
150. g of diglyme, C6H14O3 (a nonvlatile liquid solvent) is mixed?
361 mm Hg
72.8 mm Hg
425 mm Hg
388 mm Hg
