Equilibrium questions
1777 published questions with worked solutions.
- Consider the reaction equilibrium 2SO_2(g) + O_2(g) 2SO_3(g); H^0 = -198 kJ. On the basis of Le Chatelier's principle, the...
- The solubility in water of a sparingly soluble salt AB is 1.0 10^ -5 mol L^ -1 . Its solubility product number will be
- When rain is accompanied by a thunderstorm, the collected rain water will have a pH value
- What is the equilibrium expression for the reaction P_ 4(s) + 5O_ 2(g) P_4O_ 10(s) ?
- For the reaction, CO(g) + Cl_2(g) COCl_2(g) the K_p K_c is equal to
- The equilibrium constant for the reaction N_2(g) + O_2(g) 2NO(g) at temperature T is 4 10^ -4 . The value of Kc for the reaction...
- The molar solubility product is K_ sp . ' s ' is given in terms of K_ sp by the relation
- The exothermic formation of ClF_3 is represented by the equation: Cl_ 2(g) + 3F_ 2(g) 2ClF_ 3(g) ; rH = -329 kJ Which of the...
- For the reaction 2NO_ 2(g) 2NO_ (g) + O_ 2(g) , (K_c = 1.8 10^ -6 at 184C ) (R = 0.0831 kJ/(mol.K) When K_p and K_c are compared...
- An amount of solid NH_4HS is placed in a flask already containing ammonia gas at a certain temperature and 0.50 atm. Pressure....
- The solubility product of a salt having general formula MX_2, in water is: 4 10^ -12 . The concentration of M^ 2+ ions in the...
- Hydrogen ion concentration in mol / L in a solution of pH = 5.4 will be
- What is the conjugate base of OH^-?
- Phosphorus pentachloride dissociates as follows, in a closed reaction vessel, PCl_5(g) PCl_3(g) + Cl_2(g) If total pressure at...
- The equilibrium constant for the reaction SO_3(g) SO_2(g) + 12O_2(g) is K_c = 4.9 10^ -2 . The value of K_c for the reaction...
- The pKa of a weak acid (HA) is 4.5. The pOH of an aqueous buffered solution of HA in which 50% of the acid is ionized is
- In a sautrated solution of the sparingly soluble strong electrolyte AgIO_3 (Molecular mass = 283) the equilibrium which sets in...
- The first and second dissociation constants of an acid H_2A are 1.0 10^ -5 and 5.0 10^ -10 respectively. The overall dissociation...
- For the following three reactions a, b and c, equilibrium constants are given: a. CO(g) + H_2O(g) CO_2(g) + H_2(g); K_1 b....
- Four species are listed below i. HCO_3^- ii. H_3O^+ iii. HSO_4^- iv. HSO_3F Which one of the following is the correct sequence of...
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