At room temperature, MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 × 10-13. The true statement regarding MY and NY3 is:
1. | The molar solubility of MY in water is less than that of NY3. |
2. | The salts MY and NY3 are more soluble in 0.5 M KY than in pure water. |
3. | The addition of the salt of KY to a solution of MY and NY3 will have no effect on their solubilities. |
4. | The molar solubilities of MY and NY3 in water are identical. |
Consider the nitration of benzene using mixed conc. H2SO4 and HNO3.
If a large amount of KHSO4 is added to the mixture, the rate of nitration will be:
1. | Slower | 2. | Unchanged |
3. | Doubled | 4. | Faster |
When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the pH of the resulting solution will be:
1. | 12.65 | 2. | 2.0 |
3. | 7.0 | 4. | 1.04 |
An acidic buffer cannot be formed by which of the following combinations is:
1.
2.
3.
4.
The value of the equilibrium constant for a particular reaction is 1.6 × 1012. When the system is in equilibrium, it will include:
1. All reactants
2. Mostly reactants
3. Mostly products
4. Similar amounts of reactants and products
The strongest acid among the following compounds is:
1. | HClO3 | 2. | HClO4 |
3. | H2SO3 | 4. | H2SO4 |
For the reaction the equilibrium constant is K1. The equilibrium constant is K2 for the reaction
The value of K for the reaction given below will be:
1.
2.
3.
4.
A saturated solution of Ba(OH)2 has a pH of 12. The value of its Ksp will be:
1.
2.
3.
4.
The equilibrium reaction that doesn't have equal values for Kc and Kp is:
1. \(2NO(g) \rightleftharpoons N_2(g) + O_2(g)\)
2. \(SO_2(g) + NO_2(g) \rightleftharpoons SO_3(g) + NO(g)\)
3. \(H_2(g) + I_2(g) \rightleftharpoons 2HI (g)\)
4. \(2C(s) + O_2(g) \rightleftharpoons 2CO_2(g)\)
In a buffer solution containing an equal concentration of B- and HB, the Kb for B- is 10-10. pH of the buffer solution is:
1. | 10 | 2. | 7 |
3. | 6 | 4. | 4 |