Interactive Chemistry Tools

Simulators, calculators, and study aids grouped by topic. Each one links to the lessons it supports.

Stoichiometry & Structure

Parse any formula, including hydrates, for molar mass and percent composition, or work backward to empirical and molecular formulas.

High School & Honors 5–10 min

Rotate 3D models of all 13 molecular shapes and see electron geometry, bond angles, and hybridization.

Honors & AP 10–15 min

Adjust concentration, path length, and molar absorptivity, then build a calibration curve to find an unknown.

AP 10–15 min

Plot concentration data three ways to find reaction order, the rate constant, and half-life.

AP 10–15 min

Fill in initial, change, and equilibrium rows step by step with instant checks.

Honors & AP 10–20 min

Watch pH change through a titration and spot the half-equivalence and equivalence points.

AP 10–15 min

Build a cell from nine half-cells, change concentrations, and see E°cell, ΔG°, K, and Nernst voltage.

Honors & AP 10–15 min

Six decks covering ions, strong acids and bases, solubility, solution colors, flame tests, and VSEPR shapes.

All levels 5 min per deck