In some solutions, the concentration of $\mathrm{H}_3 \mathrm{O}^{+}$ remains constant even when small amounts of strong acid or strong base are added to them. These solutions are known as:

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Aicharya · Accepted Answer

Solutions which resist the change in the value of $\mathrm{pH}$ when small amount of acid or base is added to them are known as buffers.

In some solutions, the concentration of $\mathrm{H}_3 \mathrm{O}^{+}$ remains constant even when small…

Solution