Ad Space (728x90) Ad Space (320x50)
Molarity Calculator
mol
g
g/mol
Molarity (M = n / V)
0.500 M
Moles
0.5 mol
Volume
1 L
Molarity
0.5 M
Common Molar Masses (g/mol)
NaCl58.44
H₂O18.02
NaOH40.00
HCl36.46
Ad Space (336x280) Ad Space (300x250)
How to Use the Molarity Calculator
- Select what you want to calculate
- Enter the known values
- For mass mode, enter mass and molar mass
- View calculated molarity or other values
Molarity Formulas
- M = moles ÷ volume (L)
- moles = M × volume
- moles = mass ÷ molar mass
- M₁V₁ = M₂V₂ (dilution)
Ad Space (336x280) Ad Space (300x250)
Frequently Asked Questions
What is molarity?
Molarity (M) is the number of moles of solute per liter of solution. It's the most common concentration unit in chemistry.
How do I calculate moles from mass?
Moles = Mass (g) ÷ Molar Mass (g/mol). For example, 58.44g NaCl ÷ 58.44 g/mol = 1 mole.
What's the difference between molarity and molality?
Molarity (M) is moles per liter of solution. Molality (m) is moles per kilogram of solvent. Molality doesn't change with temperature.
How do I dilute a solution?
Use M₁V₁ = M₂V₂. Initial molarity × volume = final molarity × volume.