Answer:
83.98 g/mol
Explanation:
To find the molar mass of AlF₃, you need to add the individual molar masses of each element times their quantities. For instance, since there are 3 fluorine atoms in AlF₃, the molar mass of AlF₃ must include the molar mass of fluorine times 3.
Molar Mass (Al): 26.98 g/mol
Molar Mass (F): 19.00 g/mol
Molar Mass (AlF₃): 26.98 g/mol + 3(19.00 g/mol)
Molar Mass (AlF₃): 83.98 g/mol