How to Prepare a Molar Solution
Calculate exact reagent mass or concentration step-by-step:
Select Variable
Choose target parameter to calculate (Molarity, Mass, or Volume).
Enter Molar Mass
Input solute formula weight in g/mol.
Enter Target Volume
Input volumetric flask capacity in Liters or mL.
Weigh & Dissolve
Weigh calculated solute mass and bring to total solution volume.
Key Features & Solution Stoichiometry
3-Way Solver Engine
Solves interchangeably for Molarity, Solute Mass, or Flask Volume.
Volumetric Flask Units
Converts seamlessly between Liters and Milliliters (mL).
Clear Recipe Step Output
Generates readable lab preparation instructions for bench work.
Solution Chemistry Guide: Molarity (M)
Molarity (M) is the standard chemical concentration unit defined as moles of solute dissolved per Liter of solution:M = n / V where n = mass (g) / Molar Mass (g/mol)
Frequently Asked Questions
?Do I add 1L of water to solute to make 1M solution?
No. Dissolve the solute in a small amount of solvent first, then dilute to a total FINAL SOLUTION volume of 1 Liter in a volumetric flask.