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Calculate Concentration

This is a collection of definitions and examples of different methods calculating the concentration of a chemical solution. Molarity, molality, normality, dilutions, mole fraction, and mass percent are among the concentration calculations that are included.

How to Calculate Concentration
This is an overview of the most common methods of calculating concentration, including sample calculations. Molarity, molality, normality, mole fraction, and mass percent are covered.

Prepare a Solution
Here's a quick overview of how to prepare a solution when the final concentration is expressed as M or molarity.

Dilutions from Stock Solutions
If you're working in a chemistry lab, it's essential to know how to calculate a dilution. Here's a review of how to prepare a dilution from a stock solution.

Mass Percent Composition
These are examples of mass percent composition calculations, with links to other worked chemistry problems and homework help.

Molality Example Problem
Here is an example of calculating concentration or molality of a solution.

Molarity Example #1
This is a worked example showing the steps necessary to create a stock solution of predetermined molarity.

Molarity Example #2
This is a worked example of how to determine the concentration of individual ions in an aqueous solution from the total concentration.

Molarity Example #3
This is a worked example showing the steps necessary to find the concentration of a solution when given the amount of solute.

Molarity Example #4
These are examples of concentration and molarity calculations, with links to other worked chemistry problems and homework help.

Molarity Example #5
Here is an example of calculating concentration or molarity of a solution.

Normality Calculation
The normality of a solution is the gram equivalent weight of a solute per liter of solution. Here's an example of how to calculate the normality of a solution.

Volume Percent Concentration
Learn what volume percent or volume-volume percent concentration means and how to calculate volume percent when preparing a solution.