The percentage composition of sulfur would be 31.17% while the percentage composition of chlorine would be 68.93%.
The percentage composition of a component in a compound is the ratio of the mass of the component and the mass of the compound itself.
Mathematically, percentage composition can be expressed as:
Percent composition = mass of component/mass of substance x 100%
In this case, 30.9 g of a sample sulfur-chlorine compound contains 9.63 g of sulfur and 21.3 g of chlorine.
Percentage sulfur composition = 9.63/30.9 x 100%
= 31.17%
Percentage chlorine composition = 21.3/30.9 x 100%
= 68.93%
In other words, the percentage sulfur composition of the compound would be 31.17% while the percentage chlorine composition of the compound would be 68.93%.
More on percentage composition can be found here: https://brainly.com/question/11952337
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