C4 Flashcards
1
Q
How do you work out a compound relative mass
A
Add up all of Relative atomic masses
2
Q
What is a mole
A
Unit for measuring the amount of substance
3
Q
Avagrado constant definition / figure 
A
The number of atoms in a mole of any substance
6.02x10 to the power 23
4
Q
What is the symbol for relative atomic mass
A
Ar
5
Q
What is the symbol for relative formula mass
A
Mr
6
Q
Moles equation
A
Number of moles= Mass (g) divided by Relative formula mass/ Relative atomic mass