Carbon tetrachloride, CCl4, has one carbon atom per molecule. The molar mass of carbon tetrachloride can be calculated by adding the atomic masses of the constituent atoms:
1 × 12.01 g/mol (carbon) + 4 × 35.45 g/mol (chlorine) = 154.01 g/mol
To determine the number of moles of carbon in 393.0 g of carbon tetrachloride, we need to divide the mass by the molar mass:
393.0 g / 154.01 g/mol = 2.549 moles
Since there is one carbon atom in each molecule of carbon tetrachloride, there are 2.549 moles of carbon in 393.0 g of carbon tetrachloride.
To convert from moles to grams, we can use the molar mass of carbon:
2.549 moles × 12.01 g/mol = 30.57 g
Therefore, there are approximately 30.57 grams of carbon in 393.0 g of carbon tetrachloride.