Insert the information in the form and the calculator will determine the buffer capacity.

What is the buffer capacity?

Buffer capacity is the number of moles of a base or acid that should be added to one liter of a buffer in order to cause it's pH to change by 1 unit.

How to calculate buffer capacity?

To calculate buffer capacity you should use the following formula:
B = n / ∆pH
where:
B = buffer capacity
n = amount of acid/base moles
∆pH = final pH - initial pH

Why use buffer capacity?

The buffer capacity is used to quantify the ability of a solution to resist the changes in pH by either absorbing desorbing or absorbing H+ and OH- ions.