What is the mass of 0.500 mol of dichlorodifluoromethane,CCl₂F₂?

Question

Quizplus · Accepted Answer

To find the mass of 0.500 mol of dichlorodifluoromethane, we need to use the molar mass of the compound.

The molar mass of CCl2F2 is:

1 Carbon atom = 12.01 g/mol
2 Chlorine atoms = 2 x 35.45 g/mol = 70.90 g/mol
2 Fluorine atoms = 2 x 18.99 g/mol = 37.98 g/mol
Total molar mass = 12.01 + 70.90 + 37.98 = 120.89 g/mol

Now we can use the formula:

mass = moles x molar mass

mass = 0.500 mol x 120.89 g/mol

mass = 60.45 g

Therefore, the correct answer is B) 60.5 g.

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