Section 15.1
What are Solutions?
Practice Test
1.
If 12.0 g of a gas at 2.5 atm dissolve in 1.0 L of water at 25°C, how much will dissolve in 1.0 L of water at STP?
a.
0.21 g/L
b.
2.1 g/L
c.
4.8 g/L
d.
12.0 g/L
Hint
2.
In a solution, the substance that does the dissolving is ____________.
a.
the solvent
b.
the solute
c.
saturated
d.
miscible
Hint
3.
Solutions can be mixtures of _______________.
a.
solids
b.
liquids
c.
gases
d.
all of the above
Hint
4.
In a glass of sugar water, which substance is the solute?
a.
water
b.
sugar
c.
glass
d.
none of the above
Hint
5.
The process of a solvent and a solute completely mixing and forming a solution is ________.
a.
solvation
b.
salvation
c.
crystallization
d.
ionization
Hint
6.
Which of the following will not increase the rate of solvation?
a.
agitating the mixture
b.
increasing the surface area
c.
increasing the temperature
d.
formation of a precipitate
Hint
7.
A solution is said to be ________ when more solute can be dissolved in the solvent at a given temperature.
a.
supersaturated
b.
saturated
c.
unsaturated
d.
solvated
Hint
8.
What is a common means of identifying a supersaturated solution?
a.
precipitation
b.
dissolution
c.
solvation
d.
hydration
Hint
9.
The decrease in solubility of a gas in a solution when the pressure is reduced is described by _________.
a.
Boyle’s law
b.
Henry’s law
c.
Charles’s law
d.
the ideal gas law
Hint
