Buffer Capacity Calculator

Amount of Acid/Base:

Initial pH:

Final pH:

Buffer Capacity (mol/cubic millimeter, mm³): Buffer Capacity (mol/cubic centimeter, cm³): Buffer Capacity (mol/cubic meter, m³): Buffer Capacity (mol/cubic inch, cu in): Buffer Capacity (mol/cubic foot, cu ft): Buffer Capacity (mol/milliliter, ml): Buffer Capacity (mol/liter, l): Buffer Capacity (mol/gallon (US), US gal): Buffer Capacity (mol/gallon (UK), UK gal): Buffer Capacity (mol/fluid ounce (US), US fl oz): Buffer Capacity (mol/fluid ounce (UK), UK fl oz):

1. What is a Buffer Capacity Calculator?

Definition: This calculator determines the buffer capacity of a solution based on the amount of acid or base added per unit volume and the change in pH.

Purpose: It helps assess a buffer solution's ability to resist pH changes, critical for applications in chemistry, biology, and pharmaceuticals.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \beta = \frac{n}{\Delta pH} \]

Where:

\( \beta \) — Buffer capacity
\( n \) — Number of moles of acid or base added per liter of buffer solution
\( \Delta pH \) — Change in pH (\( \Delta pH = \text{Final pH} - \text{Initial pH} \))

Explanation: Enter the amount of acid/base (in moles per unit volume), initial pH, and final pH. Select the appropriate unit for the amount, and the calculator converts and computes buffer capacity in all specified units.

3. Importance of Buffer Capacity

Details: Buffer capacity indicates how well a solution maintains a stable pH, essential for biochemical processes, industrial applications, and laboratory experiments.

4. Using the Calculator

Tips: Input the amount of acid/base (e.g., 0.001 mol/L), initial pH (e.g., 7.0), and final pH (e.g., 7.2). Choose the unit (e.g., mol/liter) from the dropdown, and the calculator will display buffer capacity in all listed units.

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