Question

Calculate the mass of ferric oxide that could be produced by complete oxidation of 2g of fe

Answer 1

Answer:

Generally ferricoxide is obtained from Fe and O as Fe2O3

     so ,

      Fe2+O3- Fe2O3

       2g . atomic wt of Fe + 3g. atomic wt of O= WEIGHT OF Fe2O3

       in chemistry mass is very closer term to weight

     2.56 + 3.16=112+48

                      =160

   therefore mass of ferric oxide is 160 g but i dont know how to get 2.86g