What do you understand by formula unit mass of a compound?
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Given atomic masses of Zn= 65u, Na= 23u, K= 39u, C= 12u and O= 16u.Formula unit mass: The formula unit mass of a substance is the sum of theatomic masses of all atoms in aformula unit of a compound. The term 'formula unit' is used for those substances which are made up of ions.
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