Answer:

1. Sulfur (S) and Oxygen (O)

2. empirical formula (mole ratio)

3.  or Sulfur Dioxide

Solution:

G: 50.05% S ; 49.95%O

R: empirical formula

A: find the mole ratio

S:

assume 100g:

50.05% S = 50.05g S

49.95% O = 49.95g O

convert from mass to moles:

solve for mole ratio:

*1.5605mol is the lowest amongst the moles so use it as the divisor

use the mole ratio to write the formula:

A: The empirical formula is more commonly known as sulfur dioxide