Answer:
0.3504 mol of CF₂Cl₂.
Explanation:
We need to know the molar mass of CF₂Cl₂ to find out the moles
Molar mass of C = 12 g/mol
Molar mass of F = 19 g/mol
Molar mass of Cl = 35.45 g/mol
Molar mass of CF₂Cl₂ = 12 + 19 . 2 + 35.45 . 2 =120.9 g/mol
Now we determine the moles of our mass
42.37 g . 1 mol / 120.9 g = 0.3504 mol