Chemistry Flashcards
1
Q
How to find a percentage of mass
A
% of mass of (element)=(mass of element X number of it in molecule)÷(relative mass of molecule)
2
Q
How to find the relative mass
A
All of the atomic weight of the molecule added together
3
Q
How to find moles
A
Moles= Mass of molecule÷ relative mass of the molecule
4
Q
What is Avogadro’s number
A
6.02X10^24
5
Q
How to calculate the amount of atoms in an element
A
MolesX6.02X10^24
