What is the percent composition of sulfur compound that contains 20.8 g carbon and 54.4 g sulfur?

Percentage of S = 72.3%

Percentage of C = 27.7%

Explanation:

Given dа ta:

Mass of carbon = 20.8 g

Mass of sulfur = 54.4 g

Percent composition = ?

Solution:

First of all we will calculate the total mass of compound.

Total mass = mass of carbon + mass of sulfur

Total mass = 20.8 g + 54.4 g

Total mass = 75.2 g

Percentage of carbon:

Percentage of C = mass of carbon / total mass * 100

Percentage of C = 20.8 g / 75.2 g * 100

Percentage of C = 27.7%

Percentage of Sulfur:

Percentage of S = mass of carbon / total mass * 100

Percentage of S = 54.4 g / 75.2 g * 100

Percentage of S = 72.3%

Total = 72.3% + 27.7% = 100% (so answer is correct)