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[35] Order the following molecules in order of increasing boiling points:        NH3, NF3, OH2, OF2

[17] Which of the following combinations can be used to make a buffer solution?

[21] Which is the strongest acid of the following at 0.100 M concentration?

[27] Which forward reaction is a spontaneous process? A  ↔  B

[6] A plot of 1/[BrO-] vs time is linear for the reaction:   3 BrO- (aq)  →  BrO3- (aq)  +  2 Br- (aq) What is the order of the reaction with respect to the hypobromite ion?

[20 Which of these neutralization reactions has a pH < 7 when equal molar amounts of acid and base are mixed?

[31] What is the shorthand notation that represents the following galvanic cell reaction? MnO4- (aq) + 16 H+ (aq) + 10 I- (aq)  →  5 I2 (s) + 2 Mn2+ (aq) + 8 H2O (l)

[30] At normal atmospheric pressure, the partial pressures of the reaction mixture are: 2 CO (g)  +  2 NO (g)  ↔  2 CO2 (g)  +  N2 (g) Which direction will the reaction shift?       CO NO CO2 N2   P (atm) 5.0 × 10-5 5.0 × 10-7 3.0 × 10-4 0.80

[3] The gas-phase reaction of A and BC, is second order in A and first order in BC. What is the rate law, and what are the units of the rate constant? A2 (g)  +  2 BC (g)  →  2 AB (g)  +  C2 (g)

[8] The equilibrium constant (KP) for the formation of nitric oxide at 530 °C is 2.9 × 10-11. Calculate what the partial pressure of NO when the partial pressures of nitrogen and oxygen are 3.0 and 0.12 atm, respectively. N2 (g)  +  O2 (g)  ↔  2 NO (g)