Chemistry Calculators

5 professional tools. Calculate molar mass, moles, concentration, pH, and dilutions for chemistry problems.

What Is Chemistry?

Chemistry calculators bridge the macroscopic lab bench and the atomic scale — moles, concentrations, pH, and dilutions. Essential for general chemistry coursework, lab preparation, and quality control.

Core Topics

Amount & Mass

Moles and molar mass conversions.

Solutions

Concentration and dilution calculations.

Acid-Base

pH scale and hydrogen ion concentration.

All Chemistry Calculators

ToolLink
Molar MassMolar Mass Calculator
MoleMole Calculator
ConcentrationConcentration Calculator
pHpH Calculator
DilutionDilution Calculator

Key Concepts

  • Avogadro's number: 6.022 × 10²³ particles per mole
  • Molarity M = moles / liters of solution
  • Dilution: M₁V₁ = M₂V₂ (same solute, different volume)
  • pH = −log₁₀[H⁺] for aqueous solutions
  • Significant figures matter in lab reporting

Common Mistakes

  • Confusing molarity with molality
  • Using mL without converting to liters in M calculations
  • Rounding pH too early in multi-step problems
  • Applying dilution formula when moles are not conserved

Frequently Asked Questions

Mass of one mole of a substance in g/mol, numerically equal to atomic/molecular weight.

Use M₁V₁ = M₂V₂. The Dilution Calculator solves for any missing variable.