Answer:
243.05 gm of Fe2O3
Explanation:
From periodic table mole wt of Fe = 55.845 gm
170 g / 55.845 gm/mole = 3.044 moles Fe
From equation
4 Fe ====> 2 Fe2 O3
so 1/2 as many moles as Fe 3.044 / 2 = 1.522 moles of Fe2O3
mole wt of Fe2 O3 from periodic table = 159.687 gm/mole
1.522 moles * 159.687 gm/mole = 243.05 gm
