VerChem: Chemistry Calculator

VerChem is the most complete chemistry calculator for students — 16 professional tools in one app, powered by
NIST/IUPAC certified data.

INTERACTIVE TOOLS
- Full Periodic Table — 118 elements with complete properties
- VSEPR Geometry — predict molecular shapes with visual diagrams
- Lewis Structures — electron dot diagrams with formal charges
- Compounds Database — 50 common compounds with hazards & uses

CALCULATORS
- Equation Balancer — auto-balance with reaction type detection
- Stoichiometry — mass, moles, molecules & percent composition
- Solutions & pH — strong/weak acid-base, buffers, visual pH scale
- Gas Laws — ideal, Boyle, Charles, Dalton, Van der Waals & more
- Thermodynamics — Gibbs free energy, equilibrium & reaction analysis
- Chemical Kinetics — rate laws, half-life & Arrhenius equation
- Electrochemistry — cell potential, Nernst equation & electrolysis
- Electron Configuration — orbital box diagrams with filling order

LAB TOOLS
- Titration — curves, equivalence point & Henderson-Hasselbalch
- Nuclear Chemistry — radioactive decay, binding energy & activity
- Solution Preparation — molarity, dilution & mass percent recipes
- Unit Converter — temperature, pressure, mass, volume & more

WHY STUDENTS LOVE VERCHEM
- Step-by-step solutions for every calculation
- 100% offline — no internet required, no AI API costs
- NIST/IUPAC certified element data — accurate & reliable
- Dark theme designed for late-night study sessions
- Calculation history — review your work anytime
- 10 languages — English, Thai, Japanese, Korean, Chinese, Spanish, Portuguese, French, German, Indonesian

BUILT FOR STUDENTS
From high school chemistry to university general chemistry, VerChem covers everything you need. Pay once, use
forever — no subscriptions, no ads, no hidden costs.

DISCLAIMER: VerChem is designed for educational purposes only. Always verify critical calculations with your
instructor or official references. Not intended for professional laboratory or industrial use.

Data sources: NIST Atomic Spectra Database, IUPAC 2021 Standard Atomic Weights, CODATA 2018 Physical Constants,
CRC Handbook of Chemistry and Physics.