Physical Chemistry

Question	Answer
a) Define the term relative atomic mass based on the 12C scale	Relative atomic mass is the weighted average mass of the atoms of an element on a scale on which an atom of the 12C isotope has a mass of exactly 12 units.
b) Define the term Isotopic Mass based on the 12C scale	Relative Isotopic Mass is the mass of a particular isotope of an element on a scale on which an atom of the 12C isotope has a mass of exactly 12 units.
c) Define the term molecular mass based on the 12C scale	Relative molecular mass is the weighted average mass of a molecule on a scale on which an atom of the 12C isotope has a mass of exactly 12 units.
d) Define the term Relative Formula Mass based on the 12C scale	Relative Formula Mass is the weighted average mass of one formula unit of a compound measured on a scale on which an atom of the 12C isotope has a mass of exactly 12 units.

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	Created by Bibi Nushrina Teelhawod almost 7 years ago