Jayna Mermis
Monday, August 8, 2011
Chemistry problems......................…
The element rhenium (Re) has two naturally occurring isotopes, 185Re and 187Re, with an average atomic m of 186.207 arnu. Abundance of 187Re is 62.6000%. and the atomic m of 157Re is 186.956 amu.Calculate the m of 185Re.
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