1. Calculate the molar mass of dichlorobenzene:
* C: 12.01 g/mol * 6 = 72.06 g/mol
* H: 1.01 g/mol * 4 = 4.04 g/mol
* Cl: 35.45 g/mol * 2 = 70.90 g/mol
* Total molar mass: 72.06 + 4.04 + 70.90 = 147 g/mol
2. Calculate the moles of dichlorobenzene:
* Moles = Mass / Molar mass
* Moles = 3.982 g / 147 g/mol = 0.0271 mol
3. Calculate the moles of carbon atoms:
* Since there are 6 carbon atoms per molecule of dichlorobenzene, multiply the moles of dichlorobenzene by 6:
* Moles of carbon = 0.0271 mol * 6 = 0.1626 mol
Therefore, there are approximately 0.1626 moles of carbon atoms in 3.982 g of dichlorobenzene.
