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    What is the different between relative atomic mass and relative formula mass? Why do we have an equation for RFM and why do we have to work it out anyway? What is it used for and isn’t it the same as the atomic mass number of an element ?
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    (Original post by Wildnatxox)
    What is the different between relative atomic mass and relative formula mass? Why do we have an equation for RFM and why do we have to work it out anyway? What is it used for and isn’t it the same as the atomic mass number of an element ?
    RFM refers to compounds which are not molecular (for that you use RMM).
    RAM applies only to the atoms of an element.
 
 
 
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