What is the molar ratio of salt/acid needed to prepare citric acid buffer having the pH 2.8, usi

step 1 The question is a direct application of Henderson -Hasselbalk equation. Henderson -Hassel -Balk

What is the molar ratio of salt/acid needed to prepare...

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Henderson-Hasselbalch Equation

This equation connects the pH of a buffer solution to the pKa of the acid and the ratio of the conjugate base to the acid. It is written as pH = pKa + log([A?]/[HA]) and is essential for calculating the proportions needed to achieve a specific pH in buffer preparation.

Buffer Solutions

A buffer solution is designed to maintain a stable pH when small amounts of acid or base are added. It typically consists of a weak acid and its conjugate base, whose relative concentrations determine the system's resistance to pH changes.

Acid-Base Equilibrium

Acid-base equilibrium describes the reversible process in which a weak acid partially dissociates into its conjugate base and a proton. The equilibrium position, reflected by the pKa value, is fundamental to understanding how buffers mitigate changes in pH.

Molar Ratio Calculation

Calculating the molar ratio of components in a buffer involves using the Henderson-Hasselbalch equation to determine the necessary balance between the salt (conjugate base) and the acid. This ratio ensures that the buffer has the desired pH under given conditions.

Transcript

Please give Ace some feedback