Atomic Mass Calculator
This calculator helps you determine the atomic mass of a chemical element or compound based on its isotopic composition and relative abundances. It’s particularly useful for students, chemists, and researchers working with molecular weights and stoichiometry. Simply input isotopes and their percentages, and the calculator will output the weighted average atomic mass.
Calculator of Atomic Mass (Amu) of an Element
Weighted Average Atomic Mass Formula
Explanation:
The atomic mass is the sum of the products of each isotope’s mass and its relative abundance (as a percentage). This gives the weighted average atomic mass of the element.
The atomic mass is a fundamental concept in chemistry, representing the weighted average of all the naturally occurring isotopes of an element. For example, chlorine has two main isotopes, Cl-35 and Cl-37, with different natural abundances. This tool calculates the atomic mass by multiplying each isotope’s mass by its relative abundance (as a decimal), then summing the results. It’s essential in mole calculations, balancing equations, and understanding the molecular structure of compounds.
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