List of top Chemistry Questions on Ionic Equilibrium asked in WBJEE

A buffer solution contains 100ml of 0.01(M) \(\text{CH}_3\text{COOH}\) and 200ml of 0.02(M) \(\text{CH}_3\text{COONa}\). 700ml of water is added subsequently to the buffer solution. The pH before and after dilution are [given, \(\text{p}K_a = 4.74\); \(\log 2 = 0.301\)]

What will be the change in acidity if:
(i) CuSO₄ is added to saturated (NH₄)₂SO₄ solution,
(ii) SbF₅ is added to anhydrous HF?

At \(25^\circ \text{C}\), the ionic product of water is \(10^{-14}\). The free energy change (\(\Delta G^\circ\)) for the self-ionization of water in kcal mol\(^{-1}\) is:

Equal volumes of aqueous solution of 0.1 M HCl and 0.2 M H₂SO₄ are mixed. The concentration of H+ ions in the resulting solution is:

Number of moles of ions produced by the complete dissociation of one mole of Mohr’s salt in water is:

pH of 10⁻⁸ M HCl solution is:

The degree of dissociation of acetic acid is: