🧪 Chemistry
Henderson Hasselbalch Calculator
Calculate buffer pH from pKa and base-to-acid ratio.
Result
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Formula
pH = pKa + log([A⁻]/[HA])
How to use it
Enter the known values, keep units consistent, and select Calculate. The result is rounded for readability.
Important note
This educational calculator uses a standard simplified relationship. Laboratory, clinical, engineering, and research decisions may require additional variables, calibrated equipment, and professional review.