Question

PLEASE HELP!!
How does one determine an empirical formula from a percent composition?
A. Convert mass percents to moles and then use the moles as
subscripts in the formula
B. Convert mass percents to grams and then divide by the smallest
gram value to find subscripts
C. Convert mass percents to moles and then divide by the smallest
mole value to get subscripts
D. Convert mass percents to grams and then divide by the smallest
mass percent value to find subscripts

Answer 1

C is correct.


B is incorrect because most likely, they would've already given you the mass in grams and it's just not how you find empirical formula
D & A is just wrong because the definition of empirical formula is the simplest, positive integer ratio of atoms present in a compound. Atoms, not grams.