Relative Formula Mass (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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Relative atomic mass (Ar)
Relative atomic mass (Ar)
Compares atom mass to carbon-12 standard
Symbol for relative atomic mass
Symbol for relative atomic mass
Ar
Standard atom for Ar comparison
Standard atom for Ar comparison
Carbon-12 atom
Where to find Ar values
Where to find Ar values
Periodic table
Units for Ar and Mr
Units for Ar and Mr
No units - just numbers (they are relative)
Relative formula mass (Mr)
Relative formula mass (Mr)
Total relative mass of a compound
Symbol for relative formula mass
Symbol for relative formula mass
Mr
How to calculate Mr
How to calculate Mr
Multiply Ar by atom count, then add all values
of carbon (C)
of carbon (C)
12
of oxygen (O)
of oxygen (O)
16
of CO₂
of CO₂
Calculating Mr for ionic compounds
Calculating Mr for ionic compounds
Same method, using numbers in formula