Calculate molarity, mass, volume, and moles for chemical solutions
| Compound | Formula | Molar Mass (g/mol) | Common Concentrations | Uses |
|---|---|---|---|---|
| Sodium Chloride | NaCl | 58.44 | 0.9% (0.15 M), 3% (0.51 M) | Saline solution, buffer |
| Hydrochloric Acid | HCl | 36.46 | 1M, 6M, 12M (concentrated) | pH adjustment, cleaning |
| Sodium Hydroxide | NaOH | 40.00 | 1M, 5M, 10M | Base, pH adjustment |
| Sulfuric Acid | H₂SO₄ | 98.08 | 1M, 18M (concentrated) | Strong acid, dehydration |
| Glucose | C₆H₁₂O₆ | 180.16 | 0.1M, 1M | Cell culture, biochemistry |
Molarity (M) is the number of moles of solute per liter of solution. It's the most common unit for expressing concentration in chemistry laboratories.
Where C₁ and V₁ are the initial concentration and volume, and C₂ and V₂ are the final concentration and volume after dilution.
Our comprehensive Molarity Calculator helps students, chemists, and laboratory professionals calculate solution concentrations with precision. Determine molarity, mass, volume, and moles for chemical solutions with accurate calculations and step-by-step explanations for perfect laboratory preparations.
Essential for chemistry students, laboratory technicians, research scientists, and pharmaceutical professionals who need accurate solution preparation and concentration calculations for experiments, research, and industrial applications.
Calculate molarity from mass and volume, or determine required mass/volume for desired concentration with precise chemical formulas.
Work with grams, milligrams, liters, milliliters, molar, millimolar units with automatic conversions and precise decimal handling.
Learn molarity concepts with detailed explanations, formula derivations, and practical examples for better understanding.
Get accurate measurements perfect for laboratory preparations, research experiments, and industrial chemical processes.
Master solution chemistry with accurate molarity calculations that ensure experimental success, reproducible results, and proper chemical reactions in laboratory and industrial settings.
1M, 0.1M, 0.01M for precise quantitative analysis
mM, μM concentrations for biological assays
Concentrated solutions for dilution series
Molarity (M) is moles of solute per liter of solution, while molality (m) is moles of solute per kilogram of solvent. Molarity is temperature-dependent (volume changes), while molality is temperature-independent.
Dissolve 58.44 grams of NaCl (molecular weight 58.44 g/mol) in distilled water and dilute to exactly 1 liter in a volumetric flask. This gives you 1 mole of NaCl per liter of solution.
Molarity is convenient because volumes are easier to measure than masses in liquid handling. It directly relates to reaction stoichiometry and is practical for preparing solutions using volumetric glassware.
Molarity changes with temperature because volume expands with heat. A 1M solution at 20°C becomes slightly less than 1M at 30°C due to volume increase. For precise work, specify temperature or use molality.
Use the dilution formula: M₁V₁ = M₂V₂ where M₁ and V₁ are initial molarity and volume, and M₂ and V₂ are final molarity and volume. This works because moles remain constant during dilution.
Always use volumetric flasks for precise volume measurements
Work at consistent temperature for accurate molarity
Use analytical balance for accurate mass measurements
Label all solutions with concentration, date, and contents