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Molar Mass 1.2.1 (Definition (the average mass of an atom of an element,…
Molar Mass 1.2.1
Definition
- the average mass of an atom of an element
- taking into consideration all of the isotopes and their abundancies
- relative to one atom of Carbon-12
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- can also be called Relative Atomic Mass
Found by:
- adding of the RAMs of all the atoms in the formula
- making sure that you take into account the brackets and subscripts
when there are brackets/subscripts, you multiply that number by the subscript that corresponds to each atom within the brackets
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Need to Know:
- how to write formulas w/ polyatomic ions
- the valencies of the common polyatomic ions
- where to find the RAM of an atom
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