1) Of the following, a 0.2 M aqueous solution of ________ will have the highest
freezing point.
A) RbBr
B) K2SO4
C) Sr(NO3)2
D) (NH4)2SO4
E) Fe(NO3)2
2) Of the following, ________ has a slight odor of bitter almonds and is toxic.
A) NH3
B) N2O
C) CO
D) CH4
E) HCN
3) Of the following, only ________ does not result in the formation of acid rain.
A) carbon dioxide
B) nitrogen dioxide
C) sulfur dioxide
D) nitrogen monoxide
E) methane
4) Which of the following correctly represents the second ionization of phosphorus?
A) P+ (g) + e– → P2+ (g)
B) P (g) → P+ (g) + e–
C) P– (g) + e– → P2- (g)
D) P+ (g) → P2+ (g) + e–
E) P+ (g) + e– → P (g)
5) Of the concentration units below, only ________ uses kg of solvent in its calculation.
A) mass %
B) ppm
C) ppb
D) molarity
E) molality
6) What is the concentration (M) of CH3OH in a solution prepared by dissolving 34.4 g
of CH3OH in sufficient water to give exactly 230 mL of solution?
A) 11.9
B) 0.00159
C) 1.59
D) 4.67
E) 5.31
7) The heavier noble gases are more reactive than the lighter ones because ________.
A) the lighter noble gases exist as diatomic molecules.
B) the lighter noble gases have complete octets.
C) the heavier noble gases are more abundant.
D) the heavier noble gases have low ionization energies relative to the lighter ones.
E) the heavier noble gases have greater electron affinities.