How To Interconvert Moles, Molarity And Volume

In chemistry and physics a mole describes an amount of a substance in grams equal to its atomic mass. For example, one mole of aluminum has a mass of 13 grams since it has an atomic mass of 13. Also, one mole of a substance contains Avogadro's number of atoms, namely 6.02 times 10 to the power 23. The molarity, or concentration of a solution, equals the number of moles in the solution divided by its volume. Conversion between moles, molarity and volume is performed frequently in science problems.

Molar Mass Calculator
HCl also known as Hydrochloric Acid
Molar Mass of HCl: 36.46 g/mol
Element Symbol Atoms Mass %
Hydrogen H 1 2.8%
Chlorine Cl 1 97.2%

Step 1

Calculate the molarity of a solution in moles per liter, given moles and volume in liters, by dividing the number of moles by the volume. For example, a 5.0 liter solution containing 10.0 moles has a molarity of 2.0 moles per liter.

Step 2

Determine the number of moles in a solution, with molarity and volume known, by multiplying molarity in moles per liter by the volume in liters–an example being a 2.0 liter solution with a molarity of 3.0 moles per liter. There are 6.0 moles in the solution.

Step 3

Compute the volume of a solution in liters, given the number of moles and molarity, by dividing the number of moles by the molarity in units of moles per liter. For example, a solution containing 6.0 moles and a having a molarity of 3.0 moles per liter has a volume of 2.0 moles per liter.

Cite This Article

MLA

Hirsch, William. "How To Interconvert Moles, Molarity And Volume" sciencing.com, https://www.sciencing.com/interconvert-moles-molarity-volume-7811231/. 24 April 2017.

APA

Hirsch, William. (2017, April 24). How To Interconvert Moles, Molarity And Volume. sciencing.com. Retrieved from https://www.sciencing.com/interconvert-moles-molarity-volume-7811231/

Chicago

Hirsch, William. How To Interconvert Moles, Molarity And Volume last modified March 24, 2022. https://www.sciencing.com/interconvert-moles-molarity-volume-7811231/

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