Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Educators · pH & Buffer Lab

pH & Buffer Lab for a precipitation

Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a precipitation live below — adjust the inputs and watch it respond, right in your browser.

Ph

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pH & pOH CalculatorLive

acids, bases, and the pH scale

3.0

acidic

0714

Controls

pH measures hydrogen-ion concentration on a logarithmic scale. Each unit is a 10× change — pH 3 is ten times more acidic than pH 4.

Presets

Concentration 10⁻ⁿ M (n)

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Data Inspector

pH3.00

pOH11.00

[H⁺]1.0e-3

[OH⁻]1.0e-11

Governing equation

pH = - lo g_{10} [H^{+}] = - lo g_{10} (1.0 e - 3) = 3.00

Reading this result: Acidic: [H⁺] of 1.0e-3 M outnumbers OH⁻, and because pH + pOH always sums to 14, the pOH here is 11.0.

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↓

Titration

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Acid–Base TitrationLive

pH curve · equivalence point

Controls

Add base to an acid and track the pH. The steep jump marks the equivalence point, where moles of acid equal moles of base.

Presets

Acid concentration (M)

Base concentration (M)

Acid volume (mL)

▶ Run in Python

Data Inspector

Equivalence50.0 mL

Typestrong acid + strong base

pH at eq.7.0

Governing equation

C_{a} V_{a} = C_{b} V_{b} \Rightarrow V_{e q} = \frac{0.1 \times 50}{0.1} = 50.0 mL

Reading this result: Equivalence sits near 50.0 mL; because this is a strong acid with a strong base, the pH there is exactly 7 and the jump is nearly vertical.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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Frequently asked questions

Is this good for educators?: Yes — this version of "pH & Buffer Lab for a precipitation" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.