Molarity & Dilution Simulator
Dissolve a solute, see the concentration, and work out how much water to add to dilute it.
Concentration0 M
Solute mass0 g
Moles0 mol
Volume0 L
Water to add for target–
What you can learn
- Molarity = moles of solute ÷ litres of solution.
- Mass of solute = moles × molar mass.
- Dilution keeps the moles constant: M1 × V1 = M2 × V2.
Frequently asked questions
How do I dilute a solution to a lower concentration?
Use M1V1 = M2V2. Find the final volume V2 = M1V1 / M2, then subtract V1 to get the volume of water to add.
Does adding water change the number of moles?
No. Adding solvent only changes the volume, so the moles of solute stay the same and the concentration drops.