Question

Calculate the number of grams of CO that can react with 0.400 kg of Fe2O3.

Express your answer in grams to three significant figures.

Answer 1

The number of grams of CO that can react with 0.400 kg of
`Fe_2 O_3` is 210 g.

Step-by-step explanation:

The balanced chemical equation is

`$F e_(2) \boldsymbol{O}_(3)(s)+3 \boldsymbol{C} \boldsymbol{O}(\boldsymbol{g})>2 \boldsymbol{F e}(\boldsymbol{s})+3 \boldsymbol{C} \boldsymbol{O}_(2)(\boldsymbol{g})$`

`$0.400 \mathrm{kg} \mathrm{Fe}_(2) \mathrm{O}_(3) * \frac{1000 \mathrm{g} \mathrm{Fe}_(2) \mathrm{O}_(3)}{1 \mathrm{Kg} \mathrm{Fe}_(2) \mathrm{O}_(3)} * \frac{1 \mathrm{mol} \mathrm{Fe}_(2) \mathrm{O}_(3)}{159.7 \mathrm{gFe}_(2) \mathrm{o}_(3)} * \frac{3 \mathrm{molCO}}{1 \mathrm{molFe}_(2) \mathrm{o}_(3)} * \frac{28 \mathrm{g} \mathrm{CO}}{1 \mathrm{mol} \mathrm{CO}}$`

=210g CO is the Answer

The number of grams of CO that can react with 0.400 kg of
`Fe_2 O_3` is 210 g.