1. Calculate the molar mass of NCl3

* Nitrogen (N) has an atomic mass of 14.01 g/mol

* Chlorine (Cl) has an atomic mass of 35.45 g/mol

* Molar mass of NCl3 = 14.01 + (3 * 35.45) = 120.36 g/mol

2. Convert molecules to moles

* Avogadro's number is 6.022 x 10^23 molecules/mol

* Moles of NCl3 = (8.2 x 10^22 molecules) / (6.022 x 10^23 molecules/mol) = 0.136 mol

3. Calculate grams of NCl3

* Grams of NCl3 = (0.136 mol) * (120.36 g/mol) = 16.4 g

Therefore, there are approximately 16.4 grams in 8.2 x 10^22 molecules of NCl3.