Question

Iron(III) oxide gets mixed with elemental carbon and heated to make elemental iron and carbon dioxide.

Answer 1

Answer:

Explanation:

Iron(III) oxide gets mixed with elemental carbon and heated to make elemental iron and carbon dioxide.

2Fe₂O₃   +    3C    =    4 Fe   +    3 CO₂

2 x 160       3 x 12       4 x 56

320 gram of iron ( iii ) oxide requires 36 g of carbon for reduction

1 kg of iron will require 36 / 320 g of carbon

carbon required = 36 / 320 g

= .1125 g

= .113 g rounding off to 3 significant fig .

b )

320 gram of iron ( iii ) oxide produces  224  g of iron  after  reduction

1 g of iron will produce 224 / 320 g of iron

iron produced = 224 / 320 g

= 0.700 g .