List of top Chemistry Questions on Buffer Solutions asked in MHT CET

Calculate the pH of buffer solution containing 0.1M \(\text{CH}_3\text{COOH}\) and 0.1 M \(\text{CH}_3\text{COONa}\) \([K_a = 1.8\times 10^{-5}]\)

Find the pH of a solution formed by mixing equal volume of solution of \(0.1\) M sodium propionate and \(0.1\) molar propionic acid.
(Given The dissociation constant of propionic acid is \(1.3\times 10^{-5}\))

Match List I with List II

List I (Buffers)	List II (Applications)
(A) \(\text{HCO}_3^{-1}+\text{H}_2\text{CO}_3\)	(I) Maintain the pH of blood forms \(7.36\) to \(7.42\)
(B) Phosphates	(II) In Medicine
(C) Sodium Citrate	(III) In Qualitative analysis of basic radicals
(D) \(\text{NH}_4\text{Cl}+\text{NH}_4\text{OH}\)	(IV) In fertilizers

Choose the correct answer from the options given below:

What is the normal pH of human blood?

Calculate the pOH of buffer solution formed from $0.3 \text{ M}$ weak base and $0.45 \text{ M}$ of its salt with strong acid [$pK_b = 4.7447$]}

In an acidic buffer, if the ratio of base to acid concentration is increased by 100 times, then find the increase in pH of the buffer solution.

Calculate the pOH of buffer solution formed from $0.3 \text{ M}$ weak base and $0.45 \text{ M}$ of its salt with strong acid [$pK_b = 4.7447$]}