Mole Calculator
Calculate moles, mass, molecules, and concentration relationships with step-by-step analysis. Our calculator handles stoichiometry, molarity, molality, and more to help you understand chemistry concepts and solve chemical problems.
Last updated: December 15, 2024
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Mass to Moles
Quick Example Result
For 18.0g of water (H₂O) with molar mass 18.015 g/mol:
n = 1.000 mol, Molecules = 6.02 × 10²³
How This Calculator Works
Our mole calculator provides comprehensive analysis of chemical quantities using fundamental chemistry principles. The calculator applies stoichiometric relationships to find moles, mass, molecules, and concentration values essential for chemical analysis.
The Calculation Method
These fundamental formulas form the basis for calculating chemical quantities and understanding stoichiometric relationships in chemical reactions and solutions.
Chemistry Applications
Laboratory Work
- • Solution preparation and dilution
- • Stoichiometric calculations
- • Concentration determination
- • Chemical reaction analysis
- • Titration calculations
Real-World Applications
- • Pharmaceutical drug formulation
- • Environmental chemistry analysis
- • Food and beverage production
- • Industrial chemical processes
- • Water treatment and analysis
Scientific Basis
Our mole calculations are based on established chemical principles including the mole concept, Avogadro's number, and stoichiometric relationships. The calculator implements these principles systematically to provide accurate results for educational and professional applications.
- Mole calculations follow standard chemical notation and conventions
- Formulas use precise chemical relationships from chemistry textbooks
- Results are verified against known chemical properties and constants
- Stoichiometric analysis follows standard chemical procedures
Sources & References
- Chemistry: The Central Science - Brown, LeMay, Bursten, Murphy, Woodward, StoltzfusStandard reference for mole calculations and stoichiometry principles
- International Union of Pure and Applied Chemistry - IUPAC Standards and NomenclatureGlobal standards for chemical notation and mole calculations
- National Institute of Standards and Technology - NIST Chemistry WebBookReference data for molar masses and chemical constants
Explore more scientific tools? Check out our partial pressure calculator and concavity calculator.
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Step-by-Step Process:
- Given: Mass = 36.0g, Molar mass of H₂O = 18.015 g/mol
- Formula: n = m/M
- Substitute: n = 36.0g ÷ 18.015 g/mol
- Calculate: n = 1.998 mol ≈ 2.00 mol
- Molecules: 2.00 mol × 6.022 × 10²³ = 1.20 × 10²⁴ molecules
Results:
Interpretation: 36.0 grams of water contains exactly 2.00 moles of water molecules. Each mole contains 6.022 × 10²³ molecules (Avogadro's number), so we have 1.20 × 10²⁴ water molecules total. Since each water molecule contains 3 atoms (2 hydrogen + 1 oxygen), we have 3.61 × 10²⁴ atoms total.
This demonstrates how the mole concept bridges the gap between macroscopic mass measurements and microscopic particle counts, enabling precise chemical calculations.
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