Molar Mass Adder

Calculate Total Molar Mass of Compounds

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Compound Molar Mass Calculator

Add compounds and calculate their total molar mass.

Total Molar Mass: -

Mass Composition Calculator

Calculate mass percentage of each element in compounds.

Composition: -

Understanding Molar Mass

Molar Mass Basics

Key concepts:

  • Definition of molar mass
  • Units (g/mol)
  • Atomic mass units
  • Isotopic abundance
  • Molecular formulas

Mass Composition

Important aspects:

  • Percent composition
  • Empirical formulas
  • Molecular formulas
  • Stoichiometry
  • Mass relationships

Applications

Molar mass is used in:

  • Solution preparation
  • Stoichiometric calculations
  • Gas calculations
  • Colligative properties
  • Chemical analysis

Common Examples

Reference values:

  • H₂O: 18.015 g/mol
  • NaCl: 58.44 g/mol
  • CO₂: 44.01 g/mol
  • C₆H₁₂O₆: 180.16 g/mol

Essential Molar Mass Formulas

Molar Mass

MM = Σ(atomic mass × number of atoms)

Mass Percent

% = (element mass / total mass) × 100%

Total Mass

mtotal = Σ(ni × MMi)

where n is moles and MM is molar mass