How does the Buffer Capacity work?

β = 2.303 × Ca × Cb / (Ca + Cb) Then: Ca = acid concentration · Cb = base concentration Then: Maximum when Ca = Cb (equal concentrations) Then: Higher total buffer concentration → higher capacity.

Can you give an example of how to use the Buffer Capacity?

Example: Input 0.1M acetic acid + 0.1M sodium acetate gives a result of β = 2.303 × 0.1 × 0.1 / 0.2 = 0.115 mol/L (Maximum buffer capacity for these concentrations).

Is the Buffer Capacity free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Buffer Capacity?

Our Buffer Capacity uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Thực tế

Buffer Capacity

⚗️Buffer Capacity Calculator

Acid concentration (mol/L)

Base concentration (mol/L)

Buffer capacity (β) measures how much acid or base a buffer solution can absorb before the pH changes significantly. It depends on the total concentration of the buffer and is maximum when [HA] = [A⁻] (i.e., pH = pKa).

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Did You Know?

Physiological buffers (blood, cells) maintain pH within ±0.05 units despite continuous metabolic acid production. Loss of buffer capacity in disease states like renal failure is life-threatening.

References

›Buffer solution — Wikipedia

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Buffer Capacity

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⚗️Buffer Capacity Calculator