Ionic Equilibrium

ABC26PH0733 · The pH of a solution prepared from 0.005 mole of Ba(OH)2 in 100 cc water is · 2001-2022

ABC26PH0734 · The solubility products (Ksp) for three salts MX, MY2 and MZ3 are 1 × 10-8, 4 × 10-9 and 27 × 10-8, respectively. The solubility of these… · 2001-2022

ABC26PH0735 · (a) Calculate the pH of a solution obtained by mixing 50.00 mL of 0.20 M weak acid HA (Ka = 10-5) and 50.00 mL of 0.20 M NaOH at room… · 2001-2022 self-practice

ABC26PH0736 · The pH of a 1.0 × 10-3 M solution of a weak acid HA is 4.0. The acid dissociation constant Ka is: · 2001-2022

ABC26PH0737 · Which one of the following species is the conjugate base of HO^-? · 2001-2022

ABC26PH0738 · If Ksp is the solubility product of a sparingly soluble salt A3X2, then its solubility is · 2001-2022

ABC26PH0739 · The pH of a 1 × 10-8 M HCl solution is close to · 2001-2022

ABC26PH0745 · At 25°C, the solubility product (Ksp) of CaF2 in water is 3.2 × 10-11. The solubility (in mole per kg of water) of the salt at the same… · 2001-2022

ABC26PH0746 · The pKa values of H3PO4 are 2.12, 7.21 and 12.67. The pH of a phosphate buffer containing 0.2 M NaH2PO4 and 0.1 M Na2HPO4 is ____ · 2001-2022 self-practice

ABC26PH0747 · At 298 K, 0.1 mol of ammonium acetate and 0.14 mol of acetic acid are dissolved in 1 L of water. The pH of the resulting solution is… · 2001-2022

ABC26PH0748 · The solubility of PbI2 in 0.10 M KI(aq) is ____ × 10-7 M (rounded up to two decimal places). [The solubility product, Ksp = 7.1 × 10-9] · 2001-2022 self-practice

ABC26PH0749 · One liter of a buffer solution contains 0.004 mole of acetic acid (pKa = 4.76) and 0.4 mole of sodium acetate. The pH of the solution is… · 2001-2022 self-practice

ABC26PH0750 · A buffer solution is prepared by mixing 0.3 M NH3 and 0.1 M NH4NO3. If Kb of NH3 is 1.6 × 10-5 at 25°C, then the pH (rounded off to one… · 2001-2022 self-practice