WorksheetsSolution Concentration and Colligative Properties
Total questions: 20
Worksheet time: 12mins
When CH3OH is dissolved in water, how many particles are in solution for each unit?
1
3
4
5
6
When KCl (potassium chloride) is dissolved in water, how many particles are in solution for each unit?
1
2
3
4
6
When CaBr2 is dissolved in water, how many particles will be in solution for each unit?
1
2
3
4
5
At the same concentration, which salt will have the largest effect on the freezing point?
C2H4O2
H2S
LiBr
CaF2
What type of substance dissolves in water but does not form ions or conduct electricity?
electrolyte
nonelectrolyte
saturated
insoluble
Adding a nonvolatile solute to a liquid will ___.
depress both the freezing point and the boiling point
elevate both the freezing point and the boiling point
depress the freezing point and elevate the boiling point
elevate the freezing point and depress the boiling point
Electrolytes have a greater effect on colligative properties than nonelectrolytes do because electrolytes
are volatile
have higher boiling points
produce fewer moles of solute particles per mole of solvent
produce more moles of solute particles per mole of solvent
Water and oil are _____.
Immiscible
solvent
mixing
Which of the following statements is FALSE regarding solutions?
A solution is a homogeneous mixture
The solubility of a gas in a liquid decreases with an increase in temperature
All solutions are liquid
Solutions can be separated by physical means
What is the role of a solvent in a solution?
To dissolve the solute
To increase the pressure
To decrease the temperature
To act as a filter
Which of the following is a property of solutions?
They are always gases
The solute is visibly distinguishable from the solvent
They are homogeneous mixtures
They cannot be separated by filtration
Why can't a solution be separated by filtration?
Because the solute is chemically bonded to the solvent
Because the solute particles are too small and pass through the filter
Because the solvent evaporates during filtration
Because filtration only works for gases
Which of the following is an example of a mixture?
Pure water (H 2 O)
Table salt (NaCl)
Air
Baking soda (NaHCO 3 )
Using the graph above, which compound would dissolve the fastest at 20° C, KCl, NaCl, KNO3, or KClO3?
KCl
NaCl
KNO3
KClO3
What distinguishes the boiling point from the melting point of a substance?
The boiling point is the temperature at which a liquid turns into a gas, while the melting point is the temperature at which a solid turns into a liquid.
The boiling point is the temperature at which a solid turns into a gas, while the melting point is the temperature at which a gas turns into a liquid.
The boiling point is lower than the melting point.
The boiling point and melting point are the same for all substances.
What are intermolecular forces?
Forces within a molecule
Forces between molecules
Forces that only occur in solids
Forces that break chemical bonds
