Chapter 4 Flashcards
1
Q
how to convert moles to particles
A
multiply by 6.02 x 10^23 / 1 mol
2
Q
how to convert particles to moles
A
multiply by 1 mol / 6.02 x 10^23
3
Q
how to convert moles to mass
A
multiply by molar mass / 1 mol
4
Q
what counts as “particles”
A
- atoms (elements)
- ions
- molecules
5
Q
how to convert mass to moles
A
multiply by 1 mol / molar mass
6
Q
how to find percent composition
A
1- find molar mass of each element
2- add all of it up and the divide each elements mass by total
3- make it a percentage
7
Q
what is molar mass
A
basically the atomic mass found on periodic table
