Equilibrium questions
1777 published questions with worked solutions.
- An aqueous solution contains an unknown concentration of Ba^ 2+ . When 50 mL of a 1 M solution of Na_2SO_4 is added, BaSO_4 just...
- Which of the following are Lewis acids ?
- An alkali is titrated against an acid with methyl orange as indicator, which of the following is a correct combination ?
- The gas phase reaction 2NO_2(g) → N_2O_4(g) is an exothermic reaction. The decomposition of N_2O_4, in equilibrium mixture of...
- If solubility product of Zr_3(PO_4)_4 is denoted by K_ sp and its molar solubility is denoted by S, then which of the following...
- For the following reactions, equilibrium constants are given: S(s) + O_2(g) ⇌ SO_2(g); K_1 = 10^ 52 2S(s) + 3O_2(g) ⇌ 2SO_3(g);...
- For the reaction, 2SO_2(g) + O_2(g) ⇌ 2SO_3(g), ΔH = −57.2 kJ mol^ -1 and K_C = 1.7 10^ 16 . Which of the following statement is...
- The pH of a 0.02 M NH_4Cl solution will be [given K_b(NH_4OH) = 10^ -5 and log 2 = 0.301]
- The minimum volume of water required to dissolve 0.1 g lead (II) chloride to get a saturated solution (K_ sp of PbCl_2 = 3.2 10^...
- _fG° at 500 K for substance 'S' in liquid state and gaseous state are + 100.7 kcal mol^ -1 and + 103 kcal mol^ -1 , respectively....
- Following four solutions are prepared by mixing different volumes of NaOH and HCl of different concentrations. pH of which one of...
- At a certain temperature in a 5L vessel, 2 moles of carbon monoxide and 3 moles of chlorine were allowed to reach equilibrium...
- Consider the following statements: (a) The pH of a mixture containing 400 mL of 0.1 M H_2SO_4 and 400 mL of 0.1 M NaOH will be...
- Consider the following reversible chemical reactions: A_2(g) + B_2(g) ⇌ 2AB(g); K_1 …(1) 6AB(g) ⇌ 3A_2(g) + 3B_2(g); K_2 …(2) The...
- The pH of rain water, is approximately:
- 20 mL of 0.1 M H_2SO_4 solution is added to 30 mL of 0.2 M NH_4OH solution. The pH of the resultant mixture is: [pK_b of NH_4OH =...
- What is the molar solubility of Al(OH)_3 in 0.2 M NaOH solution? Given that, solubility product of Al(OH)_3 = 2.4 10^ -24 :
- If K_ sp of Ag_2CO_3 is 8 10^ -12 , the molar solubility of Ag_2CO_3 in 0.1 M AgNO_3 is:
- In a chemical reaction, A + 2B ⇌ 2C + D, the initial concentration of B was 1.5 times of the concentration of A, but the...
- Two solids dissociate as follows: A(s) ⇌ B(g) + C(g); K_ p_1 = x atm^2 and D(s) ⇌ C(g) + E(g); K_ p_2 = y atm^2. The total...
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