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Title: How do you calculate atomic mass using weighted average? Post by: bugmenomore on Jan 6, 2013 Bromine is comprised of 60.52% 79Br (isotopic mass is 78.9243 amu) and 39.48% 81Br (isotopic mass is 80.9214). Using these values, what is the atomic mass of bromine?
I think I need to multiply .6052 by 78.9243 and add it to .3948 x 80.9214. Is it really that simple to do? Any help is greatly appreciated. Title: How do you calculate atomic mass using weighted average? Post by: firebolt on Jan 6, 2013 Content hidden
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