percentage abundance

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CJ_bangtan
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Does anyone know how to find the percentage abundance using the relative atomic mass because i'm struggling to understand how to answer the questions for it
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turkeydinosaur16
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(Original post by CJ_bangtan)
Does anyone know how to find the percentage abundance using the relative atomic mass because i'm struggling to understand how to answer the questions for it
if you know the isotopes which formed the RAM, you can form simultaneous equations to find the answer
e.g. if the 2 isotopes (a and b) are 35 and 37 and their respective percentages were A and B:
A + B = 100%
35A +37B = RAM (effectively rearranging the calculating RAM formula)
Hope this helps
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