Molarity Calculator
Calculate the molar concentration of a solution. Essential tool for laboratory chemistry.
Common compounds
Concentration
1.0000 M
(mol/L)
Moles of solute
1.0000 mol
Total volume
1 L
Formula
M = n / V
M = (m / MW) / V
M = Molarity (mol/L)
n = Moles of solute
V = Volume in liters
m = Mass in grams
MW = Molar mass (g/mol)
Dilution
C₁V₁ = C₂V₂
To dilute a solution, use the formula C₁V₁ = C₂V₂ where C is concentration and V is volume.
What is molarity?
Molarity (M) is a measure of concentration indicating the number of moles of solute per liter of solution. It's the most commonly used concentration unit in chemistry.
Calculating molarity
M = n/V = (mass/molar mass)/volume. First calculate the moles of solute, then divide by the volume in liters.
Applications
Molarity is fundamental in solution preparation, chemical reactions, titrations, and general laboratory work.