Chlorine's Average Atomic Mass

Chemistry Level 1

Naturally occurring chlorine is 75.53% C l X 35 \ce{Cl_{35}} which has an atomic mass of 34.969 amu and 24.47% C l X 37 \ce{Cl_{37}} which has a mass of 36.966 amu. Calculate the average atomic mass of chlorine.


The answer is 35.5.

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1 solution

Ashish Menon
May 1, 2016

Find individual masses then divide by total mass.

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