General and Basic Chemistry

Calculate solute mass by multiplying concentration with volume—a quick and essential guide to accurate chemical measurements in labs and research.

Calculate analytical reagent purity using precise methods to ensure high-quality results in research and lab experiments.

Conversion of concentration units made easy. Learn to convert molarity, percent, ppm, and more with clear, step-by-step methods for accurate results.

Master concentration conversion between ppm, ppb, and % with clear, simple calculation steps for accurate, reliable results.

Discover Dalton’s Law to calculate partial pressures and learn how each gas contributes to the total pressure of a mixture.