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Molar Mass Calculator for a Chemical Formula

Calculate the Molar Mass, the Empirical Formula, Percentage by Mass and Number of Atoms for each element of a chemical formula.

Calculate the Empirical Formula, Percentage by Mass and Number of Atoms for Chemical Formula

Enter your chemical formula below, and press "Calculate" to determine the molecular mass, empirical formula, percentage by mass, and the number of moles in 1 gram of material, for each element. Note that chemical symbols must be case-sensitive so FeCl2 must have small caps for "e" and "l" to work. Fe and Cl will be recognized correctly but FE and CL will not be identified. Up to 12 different elements and brackets such as () and [] can be used in your formula.

Type in Your Formula Below:


 

 
 
 

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