The Mole and mass Flashcards
1
Q
What is one mole equal to?
A
Avagadros number - 6.022 x 10^23
2
Q
What is the symbol for mole?
A
Mol
3
Q
What is the mass of one mole equal to?
A
Mass of one mole in grams = relative atomic (or formula) mass
4
Q
What is the equation to work out the number of moles?
A
n= m/Mr
n= number of moles (mol) m = mass (g) Mr= relative formula mass (g/mol)
5
Q
What is the equation to find the percentage of an element in a compound?
A
Mass of the element/ total mass of compound (x100)
6
Q
What is relative formula mass?
A
The sum of relative masses of each atom in a compound.
