Answer:
15717.124
Step-by-step explanation:
124 moles of FeCl2.
The molar mass of FeCl2 is 126.751 g/mol.
To find grams of FeCl2, multiply the number of moles by its molar mass.
124 moles * 126.751 g/mol = 15717.124 grams.
You can check the ending unit. moles * grams / moles leaves just grams, which is the answer you're looking for.