Question

How many formula units are in 1.31 mg of
hydrogen peroxide (H2O2)?
Answer in units of formula units.


For 508 g of butadiene (C4H6) calculate the
number of moles.
Answer in units of mol.


Calculate the number of molecules.
Answer in units of molec.
016 1.0

Answer 1

units = grams/formula mass

mols = grams/molar mass


molecules in what?
1 mol of anything contains 6.02E23 of that material.