Buffer Solutions: JEE Questions & Solutions

Which of the following mixture gives a buffer solution with pH = 9.25? Given: pK_b(NH₄OH) = 4.75

Consider a weak base B of pK_b = 5.699. x mL of 0.02 M HCl and y mL of 0.02 M weak base B are mixed to make 100 mL of a buffer of pH = 9 at…

One litre buffer solution was prepared by adding 0.10 mol each of NH₃ and NH₄Cl in deionised water. The change in pH on addition of 0.05…

The pH of an aqueous solution containing 1 M benzoic acid (pKₐ = 4.20) and 1 M sodium benzoate is 4.5. The volume of benzoic acid solution…

A litre of buffer solution contains 0.1 mole of each NH₃ and NH₄Cl. On addition of 0.02 mole of HCl, the pH of the solution is found to be…

20 mL of 0.1 M NaOH is added to 50 mL of 0.1 M acetic acid solution. The pH of the resulting solution is × 10⁻² (Nearest integer). Given:…