chem 2B mol conversions

for an element

atoms are used

amu

formula mass or molecular mass units

metal + non metal (ionic compound)

formula units used when

1 mol given g x ------------------------- = answer in mol molar mass of element

grams to moles

1 mol 6.022x10^23 particles given grams x ------------- x ------------------------ = particles molar mass 1 mol

grams to particles

108 is approximately the molar mass of N2O5, meaning 6.022x10^23 molecules equals 1 mol, meaning 1 mol equals the mass of N2O5, therefore it would take 6.022x10^23 molecules to be equivalent to 108 grams to N2O5

how many molecules of N2O5 are required to equal 108 grams

gram/mol

molar mass units

multiple elements

molecules used for

molar mass of element given mol x ------------------------- = answer in grams 1 mol

mols to grams

6.022x10^23 particles given mol x ------------------------- = answer in particles 1 mol

mols to particles

atoms, molecules, formula units

particles are either?

1 mol molar mass given particles x ------------------------- x ------------- = grams 6.022x10^23 particles 1 mol

particles to grams

1 mol given particles x ------------------------- = answer in mol 6.022x10^23 particles

particles to mols