The Lab Toolkit

High-yield conversion tools, molar calculations, and equations for solving problems.

Molar Mass Calculator

Enter any formula to instantly parse elements and calculate molecular weight.

Quick Recap

Test your conceptual retention of organic reagents and physical chemistry mechanisms.

Lucas Reagent

Click to Flip

Conc. HCl + Anhydrous ZnCl2. Used to distinguish 1°, 2°, and 3° alcohols.

Unit Converter

Quickly scale parameters for Gas Laws, thermodynamics, and light equations.

atm -
Pa -
mmHg (torr) -
bar -

Constants Cheat Sheet

Standard reference constants calibrated in metric SI and alternative units.

R Gas Constant 8.314 J·K⁻¹·mol⁻¹ 0.0821 L·atm·K⁻¹·mol⁻¹
NA Avogadro's Number 6.022 × 10²³ mol⁻¹
h Planck's Constant 6.626 × 10⁻³⁴ J·s
c Speed of Light 3.0 × 10⁸ m/s
F Faraday's Constant 96,485 C/mol
me Mass of Electron 9.109 × 10⁻³¹ kg