Molarity Calculator
Solve everyday chemistry prep problems with clean molarity, dilution, moles, mass, and volume calculations. Built for students, lab classes, and quick stoichiometry checks.
Choose a mode and calculate to see the chemistry result.
Molarity relates moles of solute to liters of solution.
Most chemistry prep problems reduce to converting units, then applying one formula cleanly.
Core formulas
M = n / V
Molarity equals moles of solute divided by liters of solution.C₁V₁ = C₂V₂
Dilution keeps the amount of solute constant while changing the total volume.Practical chemistry notes
Always convert milliliters to liters before plugging volume into the molarity formula.
Use molar mass in grams per mole when converting between mass and moles.
For dilution, the target concentration must be lower than the stock concentration.
Frequently asked questions
What is molarity?
Molarity is the amount of solute, in moles, dissolved per liter of solution. The formula is M = n / V, where M is molarity, n is moles, and V is volume in liters.
What is the dilution formula?
The standard dilution formula is C1V1 = C2V2. It works because the amount of solute stays constant during dilution while only the solution volume changes.
Why do chemistry problems keep converting to liters and grams?
Those base units align directly with molarity and molar mass formulas. Converting first avoids unit mistakes and keeps the algebra simple.
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