Calculate molarity, mass, or volume for solution preparation. Includes dilution calculator (C₁V₁=C₂V₂) and common compound molecular weights.
Molarity
1 M
1000 mM
Formula: M = (mass / MW) / V
Common compounds (click to select):
Molarity
1 M
1000 mM
Mass
58.44 g
58440 mg
Volume
1000 mL
1 L
Moles
1
58.44 mg/mL
| Compound | MW (g/mol) | Action |
|---|---|---|
| Sodium Chloride (NaCl) | 58.44 | |
| Glucose (C₆H₁₂O₆) | 180.16 | |
| Sulfuric Acid (H₂SO₄) | 98.079 | |
| Hydrochloric Acid (HCl) | 36.46 | |
| Sodium Hydroxide (NaOH) | 40 | |
| Acetic Acid (CH₃COOH) | 60.05 | |
| Ethanol (C₂H₅OH) | 46.07 | |
| Calcium Chloride (CaCl₂) | 110.98 | |
| Potassium Chloride (KCl) | 74.55 | |
| Magnesium Sulfate (MgSO₄) | 120.37 | |
| Sodium Bicarbonate (NaHCO₃) | 84.01 | |
| Urea (CH₄N₂O) | 60.06 |
Molarity (M) = Moles of solute / Liters of solution. Example: 0.5 moles NaCl in 2 liters = 0.5/2 = 0.25 M solution. For dilutions, use C1V1 = C2V2: if you have 1M stock and need 0.1M, then 1 x V1 = 0.1 x 1000mL, so V1 = 100mL stock diluted to 1000mL total.
Molarity (M) is a measure of concentration expressed as moles of solute per liter of solution (mol/L). A 1 M solution contains 1 mole of solute dissolved in enough solvent to make 1 liter of total solution.
Molarity = (mass in grams / molecular weight) / volume in liters. First calculate moles (mass ÷ MW), then divide by the solution volume. For example: 58.44g NaCl in 1L water = 58.44/58.44/1 = 1M.
C₁V₁ = C₂V₂ where C₁ is initial concentration, V₁ is volume of stock solution needed, C₂ is final concentration, and V₂ is final volume. This assumes the solute amount stays constant during dilution.
Molecular weight (MW) is the sum of atomic weights of all atoms in a molecule, expressed in g/mol. Find it by adding atomic weights from the periodic table. NaCl: Na(23) + Cl(35.5) = 58.5 g/mol.
Calculate the mass needed: mass = molarity × molecular weight × volume. Weigh the solute, add about 80% of final volume of solvent, dissolve completely, then add solvent to reach final volume (volumetric flask recommended).
Molarity
1 M
1000 mM