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Chemistry Calculator

Molarity Calculator

Calculate molarity from moles of solute and liters of solution.

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Interactive visual explanation

Adjust the moles or volume to see how concentration changes. More moles increases molarity. More volume lowers molarity.

Visual molarity

0.250 M

M = 0.50 mol ÷ 2.0 L

Solute particles spread through the solution

Understanding

Molarity measures how many moles of solute are dissolved in each liter of solution.

FAQs

What is molarity?

Molarity is the concentration of a solution measured in moles of solute per liter of solution.

What are the units of molarity?

Molarity is reported in mol/L, commonly written as M.

Can molarity be negative?

No. Moles and volume are positive quantities, so molarity cannot be negative.

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