The degree of ionisation of $0.1\mathrm{M}$ acetic acid ($K_a=1.8\times 10^{-5}$) is nearest to (use $\alpha =\sqrt{K_a/c}$)

More questions on pH of strong and weak acids and bases, mixtures

• The pH of a 5x10^-4 M solution of Ba(OH)2 at 298 K (assume complete ionisation) is NEET level
• For a weak monobasic acid HA of concentration 0.1 M and K_a=10^-5, the pH (using [H+]=sqrtK_a c) is NEET level
• The pH of a 0.005 M solution of H2SO4 at 298 K, assuming complete ionisation of both protons, is NEET level
• A 0.1 M solution of a weak monobasic acid has pH 3.0. Treating ionisation as small compared with c, its pK_a is NEET level
• A solution has pH 9.3 at 298 K. Its pOH is NEET level
• 10 mL of 0.1 M HCl is diluted with water to a total volume of 1000 mL. The pH of the diluted solution is NEET level