Chemistry

Buffer Capacity Calculator

Estimate a buffer's resistance to pH change.

Calculated Output

Buffer capacity (β) (mol/L/pH) 0.1152

Formula: β ≈ 2.303 × (C_a · C_b) ÷ (C_a + C_b)

Step-by-Step Breakdown

1. Values used:

2. Acid concentration = 0.1 mol/L

3. Conjugate base concentration = 0.1 mol/L

5. Buffer capacity (β) = 0.1152mol/L/pH

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The math behind it

β ≈ 2.303 × (acid × base) ÷ (acid + base). Capacity peaks when acid and base concentrations are equal.

0.1 M acid & 0.1 M base → 0.058.

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Use equal acid/base amounts and higher total concentration.