What is Molarity?
Molarity (M) is the number of moles of solute per liter of solution. It is the most commonly used unit of concentration in chemistry. The formula is:
Molarity (M) = moles of solute / liters of solution
Calculate Solution Concentrations with Precision
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Calculate the molarity of a solution using mass of solute and volume of solution.
Calculate the final concentration or volume needed for dilution using M₁V₁ = M₂V₂.
Calculate the mass of solute needed to prepare a solution of known molarity and volume.
Molarity (M) is the number of moles of solute per liter of solution. It is the most commonly used unit of concentration in chemistry. The formula is:
Molarity (M) = moles of solute / liters of solution
When diluting solutions, the number of moles of solute remains constant. This leads to the dilution equation:
M₁V₁ = M₂V₂
Where:
Molarity is crucial in:
Solution volume changes with temperature, which affects molarity. For precise work, temperature should be specified and controlled.
Molarity (M) = moles of solute / liters of solution
Moles = mass (g) / molar mass (g/mol)
M₁V₁ = M₂V₂