Equilibrium questions
1777 published questions with worked solutions.
- The solubility of AgCl(s) with solubility product 1.6 10^ -10 in 0.1 M NaCl solution is x 10^ -9 M. The value of x is ________.
- The solubility of PbCl_2 in water is S mol L⁻¹ and its solubility product is K_ sp , and S is represented as S= [3] K_ sp x . The...
- The value of [H^+] in 0.01 mol dm⁻³ CH_3COOH solution is ________ 10^ -4 mol dm⁻³ ( K_a =4.17 10^ -3 ).
- 50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pK_b of ammonia solution is 4.75, the pH of the mixture...
- 0.01 mol NaOH is added to 10 litres of water. The pH of the solution is ________.
- The minimum volume of water required to dissolve 2.78 g lead(II) chloride to get a saturated solution (K_ sp of PbCl_2=3.2 10^ -8...
- How many of the following salts, when dissolved in H_2O, show neutral behavior? KCl, NaNO_3, CH_3COONa, K_2SO_4, NaCN, NH_4Cl
- pK_a of a weak acid (HA) and pK_b of a weak base (BOH) are 3.2 and 3.4 respectively. The pH of their salt (AB) solution is...
- What will be the difference in pH of 10^ -3 M KOH solution and 10^ -5 M KOH solution?
- The pK_a of a weak acid, HA, is equal to the pK_b of a weak base, BOH. The pH of an aqueous solution of the corresponding salt,...
- The equilibrium constant at 298 K for a reaction A(g)+B(g) C(g)+D(g) is 100. If the initial concentration of all four species was...
- Upon heating, solid NH_4HS undergoes dissociation to form NH_3(g) and H_2S(g). If the total equilibrium pressure is 6 atm, then...
- For the reaction, C(s)+CO_2(g) 2CO(g), K_p=63 atm at 1000 K. If at equilibrium, the partial pressure of CO is ten times that of...
- In an experiment, two moles of PCl_5(g) were heated in a closed vessel of 2 L. At equilibrium, 50% of PCl_5 is dissociated into...
- In how many of the following reactions will an increase in the volume of the reaction vessel favor the formation of products?...
- When one mole of A and one mole of B were heated in a one litre flask at T(K), 0.5 moles of C was formed in the equilibrium: A+B...
- For the reaction, N_2(g)+O_2(g) 2NO(g), the value of K_c at 800°C is 0.1. What is the value of K_p at the same temperature?
- Consider the reaction, CO(g)+ 1 2 O_2(g) CO_2(g). If K_p K_c =(RT)^x, then the value of x is ________.
- The equilibrium concentrations of HI, H_2 and I_2 are 0.80, 0.10, and 0.10 mol L⁻¹ respectively. The equilibrium constant for the...
- The equilibrium constant of the reaction A+B C+D is 10. If the rate constant of the forward reaction is 30.5, then the rate...
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