Chemistry Lab Tools

Calculate how much acid or base to add to achieve a target pH in a solution. Accounts for buffer capacity and initial volume.

Chemistry acid base calculator dilution pH

Click any element to see its Bohr model with electrons orbiting in shells. Beautiful, educational diagram.

Chemistry atom Bohr model electron shells

Select functional groups to see an approximate IR absorption spectrum. Learn spectroscopy visually. All local.

Chemistry chemistry functional group IR spectrum simulator

Drag protons, neutrons, and electrons onto a Bohr model template. See the element change. Educational tool.

Chemistry atom builder electrons protons

Select bonding and lone pairs to see the predicted shape (trigonal bipyramidal, octahedral). Static diagrams.

Chemistry chemistry molecular shape viewer VSEPR

Rotate and view the 3D shapes of s, p, d, and f orbitals. Great for teaching quantum mechanics. WebGL‑based.

Chemistry 3D atom chemistry orbitals