# Chemistry

posted by .

Iron metal is formed during the reduction of iron(III) oxide:

Fe2O3 + 3CO 2Fe + 3CO2

When 24.3 kg of Fe2O3 react with 14.6 kg of CO and 7.8 kg of Fe are recovered, what is the percent yield for the reaction?

Pls.. help I am having a hard time finding the answer. The wordings are getting me confused in weather i have to choose 24.3 or 7.8 :S

• Chemistry -

You use both. This is a limiting reagent type problem; I know that because the problem gives BOTH reactants. That means that one of them is used completely while the other one will have some remaing after the reaction has occurred. I work these problem by working TWO simple stoichiometry problems (simple meaning they are not limiting reagent problems). Use either reagent and determine how much of the product is formed. Then use the other one and determine the amount of the same product. The answers probably will be different; the correct answer in limiting reagent problems is ALWAYS the smaller value and the reagent producing that value is the limiting reagent. Here is an example of a simple stoichiometry problem. Just follow the steps. Post your work if you get stuck.

• Chemistry -

## Similar Questions

1. ### Chemistry

Iron(III) oxide can be reduced by carbon monoxide. Fe2O3(s) + 3CO(g) 2Fe(s) + 3CO2(g) Use the following thermodynamic data at 298 K to determine the equilibrium constant at this temperature. Substance: Fe2O3(s) CO(g) Fe(s) CO2(g) ΔH° …
2. ### Chemistry

When 84.8 g of iron(III) oxide reacts with an excess of carbon monoxide, iron is produced. Fe2O3(s) + 3CO(g) ==> 2Fe(s) + 3CO2(g) what is the theoretical yield of iron?
3. ### Chemistry

How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.90g of Fe2O3 with enough carbon monoxide to produce iron metal?
4. ### chemistry

How many moles of carbon monoxide are needed to react completely with 1.75 moles of iron oxide?
5. ### chemistry 2

the balanced equation for the reduction of iron ore to the metal using CO is Fe2O3+3CO(g) -> 2Fe+3CO so what is the maximum of iron in grams that can bbe obtained from 454g (1.00 lb) of iron (III) oxide?
6. ### chemistry

What is the entropy change associated with the chemical reaction that occurs when iron oxide is converted to its metal form?
7. ### Chemistry

One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is Fe2O3 + 3CO → 2Fe + 3CO2 Suppose that 1.59 × 103 kg of Fe is obtained from a 2.54 × 103 kg sample of Fe2O3. Assuming that …
8. ### chemistry

Iron can be produced by the reduction of iron(III) Oxide by carbon monoxide: Fe2O3 + 3CO -> 2FE +3CO2 a) what maximum mass of CO2 could be produced from the complete reduction of 14.7g of Fe2O3?
9. ### Chemistry

For the following reaction: Fe2O3 + 3CO --> 2Fe + 3CO2 how many grams of Fe2O3 is needed to produce 111 g of Fe?
10. ### Chemistry

Iron metal is formed during the reduction of iron(III) oxide: Fe2O3 + 3CO 2Fe + 3CO2 When 29.7 kg of Fe2O3 react with 17.8 kg of CO and 4.5 kg of Fe are recovered, what is the percent yield for the reaction?

More Similar Questions