Question

cuantos gramos de oxido de hierro fe2O3 , SE PUEDE PRODUCIR A PARTIR DE 2.50 g de oxigeno que reaccionan con hierro solido

Answer 1

                              4  Fe(III) + 3 O2 → 2Fe2O3

Mm Fe2O3 = 159.68
             O2 = 32 g/mol

g Fe2O3 = 2.5 g  O2  x  1 mol O2  x  2 mol Fe2O3  x 159.68 g Fe2O3
                                     ``````````````    ````````````````````   ``````````````````````
                                         32 g O2        3 mol O2           1 mol Fe2O3

g Fe2O3 = 8.31











g Fe2O3 = 2.50 g O2 x 1 mol O2 x 2 mol Fe2O3 x 159.68 g Fe2O3

                                 `````````````` ```````````````````` ````````````````````````
32 g O2 3 mol O2 1 mol Fe2O3 g Fe2O3 = 42.581