stoich Flashcards
1
Q
moles, number of particles, avogadros
A
mols = N/avo
2
Q
how to tell the quantity of moles using a mass
A
mols =m/mr
3
Q
empirical formula
A
- devide each % by it’s Mr
- devide each answer to step 1 by the smallest answer of step 1
- multiply to find a legit ratio eg if stuff’s .5 times it all by 2
4
Q
molecular formula from emipirical formula
A
Fm = molecula formula
Fm = (Mr/empirical formula mass) x empirical formula
5
Q
molar conc
A
c = mols/volume in dm cubedd
6
Q
Gas volume
A
no. moles x22400