Buffer Solutions

Question 1

Define a buffer solution

Answer 1

A buffer solution is a water solvent-based solution which consists of a mixture containing a weak acid or a weak base and the conjugate acid of the weak base

Question 2

How do buffers maintain pH?

Answer 2

It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable.

Question 3

Give an example of an acidic buffer solution

Answer 3

CH3COOH + CH3COONa and C6H3COOH + C6H5COONa

Question 4

Describe the composition of a basic buffer solution

Answer 4

A basic buffer solution has a basic pH and is prepared by mixing a weak base and its salt with strong acid

Question 5

Explain the Henderson-Hasselbalch equation in the context of buffer solutions

Answer 5

pH= pKa + log ([A-] / [HA]) and [A] refer to the equilibrium concentrations of the conjugate acid-base pair used to create buffer solution.