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  • Topics
    • Organic Chemistry
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Henderson–Hasselbalch Equation

pH and pKa Relationship

by Dr. S. Gevorg
pH and pKa Relationship

The Henderson–Hasselbalch equation shows the correlation of the pKa and pH of the buffer solution. The pKa of a given acid, or the conjugate acid of the base, is constant and therefore, the only variable in the equation is the … Read more

Categories Acids and Bases Tags Henderson–Hasselbalch Equation Leave a comment

The Common Ion Effect

by Dr. S. Gevorg
Common Ion Effect

The common ion effect is an example of the Le Châtelier’s principle when altering the equilibrium by changing the concentration of a component. Remember, adding a reactant produces more product by shifting the equilibrium to the right, and adding a product, … Read more

Categories Acids and Bases Tags Henderson–Hasselbalch Equation Leave a comment

Preparing a Buffer with a Specific pH

by Dr. S. Gevorg

In the previous post, we talked about the pH of buffer solutions and the two approaches to calculating it. Let’s now discuss how to prepare a buffer with a given pH. So, we need to choose a proper acid/base pair … Read more

Categories Acids and Bases Tags Henderson–Hasselbalch Equation Leave a comment

The Henderson–Hasselbalch Equation

by Dr. S. Gevorg

The Henderson–Hasselbalch equation relates the pH of a buffer solution to the initial concentration of its components. Let’s say we have a buffer containing the generic weak acid HA and its conjugate base A–. The dissociation of the acid can … Read more

Categories Acids and Bases Tags Henderson–Hasselbalch Equation 2 Comments

The pH of a Buffer Solution

by Dr. S. Gevorg
pH of acetate buffer calculation

There are two ways of calculating the pH of a buffer solution; the equilibrium approach and the one using the Henderson–Hasselbalch equation. The latter is shorter and is used more often. However, let’s start with the equilibrium approach so that … Read more

Categories Acids and Bases Tags Henderson–Hasselbalch Equation Leave a comment

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