Answer : The mass of oxygen per gram of sulfur for sulfur dioxide and sulfur trioxide is, 0.997 g and 1.5 g respectively.
Explanation : Given,
Mass of oxygen in sulfur dioxide = 3.49 g
Mass of sulfur in sulfur dioxide = 3.50 g
Mass of oxygen in sulfur trioxide = 9.00 g
Mass of sulfur in sulfur trioxide = 6.00 g
Now we have to calculate the mass of oxygen per gram of sulfur for sulfur dioxide and sulfur trioxide.
Mass of oxygen per gram of sulfur for sulfur dioxide =
![\frac{\text{Mass of oxygen}}{\text{Mass of sulfur}}](https://img.qammunity.org/2021/formulas/chemistry/college/jbwr20ivdl9k9fp7jw39hd1d3exqw6bvj3.png)
Mass of oxygen per gram of sulfur for sulfur dioxide =
![(3.49)/(3.50)=0.997g](https://img.qammunity.org/2021/formulas/chemistry/college/ssnlmtaonx3413oxrkkrmpa5gtuvsnexb3.png)
and,
Mass of oxygen per gram of sulfur for sulfur trioxide =
![\frac{\text{Mass of oxygen}}{\text{Mass of sulfur}}](https://img.qammunity.org/2021/formulas/chemistry/college/jbwr20ivdl9k9fp7jw39hd1d3exqw6bvj3.png)
Mass of oxygen per gram of sulfur for sulfur trioxide =
![(9.00)/(6.00)=1.5g](https://img.qammunity.org/2021/formulas/chemistry/college/bbt2pt9pifadnglxc5hsldrw82yv0ovtoh.png)
Thus, the mass of oxygen per gram of sulfur for sulfur dioxide and sulfur trioxide is, 0.997 g and 1.5 g respectively.