Question 165 A certain oxide of iron contains 2 5 g of

Last updated: 7/3/2023

Question 165 A certain oxide of iron contains 2 5 g of oxygen for every 7 0 g of iron if it is regarded as a mixture of FeO and Fe2O3 in the weight ratio x y atomic weight of iron 56 1 9 10 2 9 20 14 5 23