Answer
Because C atomic number is 6 and S atomic number is 16, they have different numbers of subatomic particles. Sulfur atoms have greater atomic mass so 1 mole of carbon has a smaller mass than 1 mole of sulfur. This is because 1 mol of any substance is equal to that substance's atomic mass in grams.
Work Step by Step
Because C atomic number is 6 and S atomic number is 16, they have different numbers of subatomic particles. Sulfur atoms have greater atomic mass so 1 mole of carbon has a smaller mass than 1 mole of sulfur. This is because 1 mol of any substance is equal to that substance's atomic mass in grams.