Final answer:
The mass of 0.500 mol of dichlorodifluoromethane (CF₂CL₂) is 60.5 grams, calculated by multiplying the number of moles (0.500) with its molar mass (120.91 g/mol).
Step-by-step explanation:
The mass of 0.500 mol dichlorodifluoromethane, CF₂CL₂, can be calculated by first determining the molar mass of the compound. The molar mass is found by summing the atomic masses of all the atoms in a molecule of the substance. For dichlorodifluoromethane, we calculate the molar mass as follows: C (12.01 g/mol) + 2 F (2 × 19.00 g/mol) + 2 Cl (2 × 35.45 g/mol), which equals 120.91 g/mol.
Next, to find the mass of 0.500 mol, we multiply the molar mass by the number of moles: 120.91 g/mol × 0.500 mol = 60.5 grams. Therefore, the correct answer is D) 60.5g.