Final answer:
None of the provided options is correct for the mass of 3.22 mol of AlBr3. By calculating, the total mass is found to be 858.92 g, which doesn't match with any options given.
Step-by-step explanation:
To find the mass of 3.22 mol of AlBr3, we first need to calculate its molar mass. The molar mass of aluminium bromide (AlBr3) can be found by summing the atomic masses of aluminium (Al) and bromine (Br). The atomic mass of aluminium is approximately 26.98 g/mol and that of bromine is approximately 79.90 g/mol. Since there are three bromine atoms in AlBr3, we multiply the atomic mass of bromine by 3:
Molar mass of AlBr3 = (26.98 g/mol) + 3 * (79.90 g/mol) = 266.68 g/mol
Now, we multiply this molar mass by the amount in moles to find the total mass:
Total mass = 3.22 mol * 266.68 g/mol = 858.92 g
Therefore, none of the given options (A. 623.82 g, B. 133.48 g, C. 327.66 g, D. 67.23 g) is correct.