Equilibrium questions
1777 published questions with worked solutions.
- Equilibrium constants K_ 1 and K_ 2 for the following equilibria : NO(g)+ 1 2 O_ 2 (g) ; K_ 1 ;NO_ 2 (g) and 2NO_ 2 (g) ; K_ 2...
- PCl_5 PCl_3+Cl_3, K_C = 1.844. 3.0 moles of PCl_5 is introduced in a 1 L closed reaction vessel at 380 K. The number of moles of...
- The equilibrium constant for the reaction A(s) M(s)+ 1 2 O_2(g) is K_P = 4 At equilibrium, the partial pressure of O_2...
- 2HA H_2A_2 2HA H^++A^-. Initial moles a× 50 100 , 0, 0. The vapour density of the mixture at equilibrium is found to give i...
- When 5.1 g of solid NH_4HS is introduced into a two litre evacuated flask at 27°C, 20% of the solid decomposes into gaseous...
- A_3B_2 is a sparingly soluble salt of molar mass M (g mol^ -1 ) and solubility x g L^ -1 . The solubility product satisfies K_ sp...
- The solubility of Ca(OH)_2 in water is : [Given : The solubility product of Ca(OH)_2 in water = 5.5 10^ -6 ]
- The solubility of AgCN in a buffer solution of pH = 3 is x. The value of x is: [Assume : No cyano complex is formed; K_ sp...
- Assuming that Ba(OH)_2 is completely ionised in aqueous solution under the given conditions the concentration of H_3O^+ ions in...
- For the reaction A + B 2C the value of equilibrium constant is 100 at 298 K. If the initial concentration of all the three...
- The equilibrium constant Kc at 298 K for the reaction A + B C + D is 100. Starting with an equimolar solution with concentrations...
- The reaction rate for the reaction [PtCl_4]^ 2- +H_2O [Pt(H_2O)Cl_3]^-+Cl^- was measured as a function of concentrations of...
- Statement I: In the titration between strong acid and weak base methyl orange is suitable as an indicator. Statement II: For...
- The OH– concentration in a mixture of 5.0 mL of 0.0504 M NH_4Cl and 2 mL of 0.0210 M NH_3 solution is x 10^ -6 M. The value of x...
- The pH of ammonium phosphate solution, if pK_a of phosphoric acid and pK_b of ammonium hydroxide are 5.23 and 4.75 respectively,...
- A homogeneous ideal gaseous reaction AB_ 2(g) A_ (g) +2B_ (g) is carried out in a 25 litre flask at 27°C. The initial amount of...
- For a reaction at equilibrium A(g) B(g) + 1 2 C(g), the relation between dissociation constant (K), degree of dissociation ( )...
- PCl_ 5 dissociates as PCl_ 5 (g) PCl_ 3 (g) + Cl_ 2 (g). 5 moles of PCl_ 5 are placed in a 200 litre vessel which contains 2...
- In base vs. acid titration, at the end point methyl orange is present as
- 20 mL of 0.1 M NH_ 4 OH is mixed with 40 mL of 0.05 M HCl. The pH of the mixture is nearest to (Given : K_ b (NH_ 4 OH) = 1 10^...
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