Can You Make a Buffer with a Strong Acid?

Buffers cannot be made from a strong acid (or strong base) and its conjugate. This is because they ionize completely!

What happens when you add a strong acid to a buffer?

When a strong acid (H3O+) is added to a buffer solution the conjugate base present in the buffer consumes the hydronium ion converting it into water and the weak acid of the conjugate base. This results in a decrease in the amount of conjugate base present and an increase in the amount of the weak acid.

Can a strong acid and salt be a buffer?

The salt acts like a base, while aspirin is itself a weak acid. Rather than changing the pH dramatically and making the solution acidic, the added hydrogen ions react to make molecules of a weak acid. ... Buffers can react with both strong acids (top) and strong bases (bottom) to minimize large changes in pH.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.