For Hobbyists & Makers · Buffer Solution
Buffer Solution for a phase change
Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a phase change live below — adjust the inputs and watch it respond, right in your browser.
Buffer Solution (Henderson–Hasselbalch)Live
resisting pH change
Controls
Presets
A buffer is a weak acid plus its conjugate base. Its pH follows Henderson–Hasselbalch, pH = pKa + log([base]/[acid]). Add strong acid and the buffer neutralizes most of it, so the pH barely moves — unlike pure water. Educational tool.
Data Inspector
Buffer pH4.76
Same acid, no buffer7.0
pH change resisted2.2 units
Governing equation
Reading this result: Base and acid are near equimolar (ratio 1), so pH sits right at pKa where buffering capacity peaks — the added acid moves it only 2.2 pH units instead of crashing the solution.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
More with Buffer Solution
Frequently asked questions
- Is this good for hobbyists & makers?
- Yes — this version of "Buffer Solution for a phase change" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.