Formulae, Equations & Calculations (AQA A-Level Chemistry): Flashcards
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Definition of
Definition of
Avg mass of atom vs 1/12 mass of C-12 atom
Unit of
Unit of
Dimensionless (no unit)
Reference standard for relative mass
Reference standard for relative mass
Carbon-12 atom (1/12th of its mass)
Reasons C-12 chosen as reference
Reasons C-12 chosen as reference
Non-toxic, solid at room temp, easily separable
Definition of
Definition of
Avg mass of molecule vs 1/12 mass of C-12 atom
of
of
18
Use of RFM (relative formula mass)
Use of RFM (relative formula mass)
For ionic compounds
Definition of molar mass
Definition of molar mass
Mass of one mole of a substance
Unit of molar mass
Unit of molar mass
g/mol (grams per mole)
Relationship: molar mass & /
Relationship: molar mass & /
Numerically equal; molar mass adds g/mol unit to / value