Examples
Examples
Try the starting example
- Supplied acid pKa
- 4.76
- Weak-acid amount (mol)
- 0.1
- Conjugate-base amount (mol)
- 0.2
- Henderson–Hasselbalch approximate pH
- 5.06103
- Base-to-acid molar ratio
- 2
Try another scenario
- Supplied acid pKa
- 5.236
- Weak-acid amount (mol)
- 0.1
- Conjugate-base amount (mol)
- 0.2
- Henderson–Hasselbalch approximate pH
- 5.53703
- Base-to-acid molar ratio
- 2
Calculation method
Calculation method
Henderson–Hasselbalch approximate pH
pKa+log10(base/acid), supplied common-volume weak-acid/conjugate-base buffer.
Base-to-acid molar ratio
base/acid; supported ratio0.1–10 only.
Symbols and units
- a
- Supplied acid pKa
- b
- Weak-acid amount (mol)
- c
- Conjugate-base amount (mol)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Supplied pKa and appreciable acid/conjugate-base amounts, common volume and ratio0.1–10. No strong-acid/base addition, activity correction or protocol selection. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Activities, water autoionization and buffer-capacity adequacy are outside this approximation; amounts and model suitability require supplied protocol validation. Supplied acid pKa: minimum 0, maximum 14. Weak-acid amount (mol): minimum 1e-12, maximum 1000000000000.0. Conjugate-base amount (mol): minimum 1e-12, maximum 1000000000000.0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.