What is the empirical formula for a molecule containing 46.8% si and 53.2% o?

a. si2o3
b. si2o
c. sio3
d. sio2

Assume there are 100 g of the substance.
Masses:
Si: 46.8 g
O: 53.2 g
Moles:
Si: 46.8 / 28 = 1.67
O: 53.2 / 16 = 3.32
Dividing by the smaller number:
Si: 1.6 7/ 1.67 = 1
O: 3.32 / 1.67 = 2
Thus, the formula:
SiO2

Butterfly wingspan is 7.7