How This Calculator Works
LabCalc focuses on clear lab-ready math. Pick a reagent to auto-fill formula and molar mass, or switch to Custom Reagent and enter a formula directly. Every calculator updates immediately as you edit inputs.
Worked Examples
Prepare 1 L of 0.5 M NaCl. Result shows required mass after selecting NaCl.
Steps: moles = M × L; mass = moles × molar mass.
Make 100 mL of 1 M from a 10 M stock. Enter C1, C2, V2 and solve for V1.
Recipe output: take V1, add solvent to V2.
Convert wt% and density to molarity for common acids and bases.
Formula: M = (density × 1000 × wtFraction) / molar mass.
Switch between M, g/L, mg/mL, and %w/v with auto-scaling of tiny volumes.
Auto-scale keeps values readable.
Safety and Accuracy
This is a calculation aid. Always verify safety data, compatibility, and procedures before laboratory use. Cross-check results with institutional protocols and ensure correct units.
FAQ
Local seed data plus PubChem lookups cached via Cloud Functions. No scraping of commercial catalogs.
The app still works with local seed data and custom formulas.
No. The app only stores cached PubChem entries in Firestore for faster lookup.
Privacy
This site uses Google Analytics and Microsoft Clarity to understand usage patterns and improve the tool. No sensitive experiment data is collected. You can disable tracking in your browser settings.