Equilibrium questions
1777 published questions with worked solutions.
- 5.1 g NH_4SH is introduced in 3.0 L evacuated flask at 327ºC. 30% of the solid NH_4SH decomposed to NH_3 and H_2S as gases. The...
- A mixture of 100 m mol of Ca(OH)_2 and 2 g of sodium sulphate was dissolved in water and the volume was made up to 100 mL. The...
- The values of K_p/K_c for the following reactions at 300 K are, respectively: (At 300 K, RT = 24.62 dm^3 atm mol^ -1 ) N_2(g) +...
- The molar solubility of Cd(OH)_2 is 1.84 10^ -5 M in water. The expected solubility of Cd(OH)_2 in a buffer solution of pH = 12...
- In which one of the following equilibria, K_p K_c?
- 3 g of acetic acid is added to 250 mL of 0.1 M HCl and the solution made up to 500 mL. To 20 mL of this solution 1 2 mL of 5 M...
- The solubility product of Cr(OH)_3 at 298 K is 6.0 10^ -31 . The concentration of hydroxide ions in a saturated solution of...
- The K_ sp for the following dissociation is 1.6 10^ -5 PbCl_ 2(s) Pb^ 2+ _ (aq) + 2Cl^-_ (aq) Which of the following choices is...
- Solubility of calcium phosphate (molecular mass, M) in water is W g per 100 mL at 25°C. Its solubility product at 25°C will...
- K_a for CH_3COOH is 1.8 × 10^ -5 and K_b for NH_4OH is 1.8 × 10^ -5 . The pH of ammonium acetate solution will be ______.
- 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 following reaction occurs in the Blast furnance where iron ore is reduced to iron metal: Fe_2O_3(s) + 3CO(g) ⇌ Fe(l) +...
- Given below are two statements: Statement I: On passing HCl(g) through a saturated solution of BaCl_2, at room temperature white...
- If equal number of H₂, I₂ and HI molecules are present at equilibrium for the reaction H₂(g) + I₂(g) ⇌ 2HI(g), the K_P for the...
- Two solutions, A and B, each of 100 L was made by dissolving 4 g of NaOH and 9.8 g of H_2SO_4 in water, respectively. The pH of...
- For the following Assertion and Reason, the correct option is : Assertion : The pH of water increase with increase in...
- The ratio K_P K_C for the reaction: CO(g) + 12O₂(g) ⇌ CO₂(g) is:
- For the following Assertion and Reason, the correct option is Assertion (A) : When Cu (II) and sulphide ions are mixed, they...
- An acidic buffer is obtained on mixing :
- For the given hypothetical reactions, the equilibrium constants are as follows: X ⇌ Y; K₁ = 1.0, Y ⇌ Z; K₂ = 2.0, Z ⇌ W; K₃ =...
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