Question

1. Calculate the pH of 0.892 M NaF. Ka = 1.65 x 10-6 of HF. a....


1. Calculate the pH of 0.892 M NaF. Ka = 1.65 x 10-6 of HF.
a. 10.9
b. 4.35
c. 9.87
d. 13.2

2. For the below reaction, the total pressure of the system at equilibrium is 0.941 atm. Calculate the Kp value.
CaCO3 (s) ↔ CaO (s) + CO2 (g)
a. 2.004
b. 1.07
c. 0.313
d. 0.941

3. Initially in solution there is only CH3OH(g) present. After some time at a constant temperature of 432 K, the concentrations for each component in the container are: [CH3OH] = 0.384 M and [CO] = 0.821 M and [H2] = 0.463 M. The Kc = 8.88. In which direction will the reaction need to occur in order to reach equilibrium?
CH3OH (g) ↔ CO (g) + 2H2 (g)
a. Right
b. Left
c. Neither Direction

4. Identify the acid and base on each side of the following reaction.
FileHCO3- + HSO3- ​​ CO32- + H2SO3
a. base + acid ​​ base + acid
b. acid + base​​ base + acid
c. acid + base​​ acid + base
d. not an acid-base reaction

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