Equilibrium questions
1777 published questions with worked solutions.
- The K_sp for bismuth sulphide (Bi_ 2 S_ 3 ) is 1.08 10^ -73 . The solubility of Bi_ 2 S_ 3 in mol L^ -1 at 298 K is
- Class XII students were asked to prepare one litre of buffer solution of pH 8.26 by their Chemistry teacher. The amount of...
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A:...
- At 298 K, the equilibrium constant is 2 10^ 15 for the reaction: Cu(s) + 2Ag^ + (aq) Cu^ 2+ (aq) + 2Ag(s). The equilibrium...
- A 0.5 percent solution of potassium chloride was found to freeze at −0.24°C. The percentage dissociation of potassium chloride is...
- 50 mL of 0.1 M CH_ 3 COOH is being titrated against 0.1 M NaOH. When 25 mL of NaOH has been added, the pH of the solution will be...
- The pH of a solution obtained by mixing 50 mL of 1 M HCl and 30 mL of 1 M NaOH is x 10^ -4 . The value of x is_______. (Nearest...
- The effect of addition of helium gas to the following reaction in equilibrium state, is PCl_5(g) PCl_3(g)+Cl_2(g)
- (i) X(g) Y(g)+Z(g) K_ p_1 = 3; (ii) A(g) 2B(g) K_ p_2 = 1 If the degree of dissociation and initial concentration of both the...
- The equilibrium composition for the reaction PCl_3+Cl_2 PCl_5 at 298 K is given below: [PCl_3]_ eq = 0.2 mol L^ -1 , [Cl_2]_ eq =...
- Aqueous solutions of HNO_3 , KOH, CH_3COOH , and CH_3COONa of identical concentrations are provided. The pair(s) of solutions...
- The equilibrium 2Cu^I Cu^0 + Cu^ II in aqueous medium at 25 °C shifts towards the left in the presence of
- In 1 L saturated solution of AgCl [K_ sp (AgCl) = 1.6 10^ -10 ], 0.1 mol of CuCl [K_ sp (CuCl) = 1.0 10^ -6 ] is added. The...
- The thermal dissociation equilibrium of CaCO_3(s) is studied under different conditions. CaCO_3(s) CaO(s) + CO_2(g) For this...
- The K_ sp of Ag_2CrO_4 is 1.1 10^ -12 at 298 K. The solubility (in mol/L) of Ag_2CrO_4 in a 0.1 M AgNO_3 solution is
- The molar conductivity of a solution of a weak acid HX (0.01 M) is 10 times smaller than the molar conductivity of a solution of...
- The standard state Gibbs free energies of formation of C(graphite) and C(diamond) at T = 298 K are _fG^o[ C(graphite) ]=0 kJ mol...
- For a reaction taking place in a container in equilibrium with its surroundings, the effect of temperature on its equilibrium...
- The solubility of a salt of weak acid (**AB**) at pH 3 is Y 10^ -3 mol L^ -1 . The value of **Y** is _____. (Given that the value...
- The surface of copper gets tarnished by the formation of copper oxide. N_2 gas was passed to prevent the oxide formation during...
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