Chimole Lab

Chimole Lab is a chemistry helper for turning percent composition into empirical formulas — without the usual mess of rounding and lost steps.

Students enter element symbols and percentages, tap solve, and get a clear result: the empirical formula with proper subscripts, the full calculation breakdown, and the formula mass. If a molar mass is known, the app can also suggest a molecular formula.

It includes ready-made examples, a short learn section that walks through the method, and a history tab for saving and revisiting past results. Everything runs offline, with a built-in periodic table. No account, no ads, no tracking — data stays on the device.

It’s made for students and anyone studying chemistry who wants a straightforward calculator, not a black box. A study tool only: users should still follow their instructor’s rules for significant figures and rounding.