# 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?

1. 👍
2. 👎
3. 👁
1. Most of these problems, where only one reactant is given, is a simple stoichiometry problem. Print out these instructions and memorize them.
1. Write the equation and balance it.
2. Convert grams of iron oxide to moles. moles = grams/molar mass
3. Using the coefficients in the balanced equation, convert moles iron(III) oxide to moles Fe.
4. Now convert moles Fe to grams Fe. grams = moles x molar mass. This is the theoretical yield.

1. 👍
2. 👎
2. Use the balanced equation to determine the theoretical yield. Focus on the chemicals whose quantities you are given or are asked to find. CO is not important as it is excess and will make sure that all of the Fe2O3 will be changed to iron. Remember the quotients (numbers in front of formula) are the number of moles. You are given the mass of Fe2O3 in grams so you will need to convert 1 mole of Fe2O3 into grams (molar mass which, using simple atomic masses = 56x2 + 16x3 = 160g/mol but you use atomic masses that your course requires

Fe2O3(s) + 3CO(g)--> 2Fe(s) + 3CO2(g)
1 mol 2 mol
160g 112g
84.8g (112/160) x 84.8

So now you have the theoretical yield of Fe2O3 and the experimental (actual) yield = 54.3g)

Percentage Yield = (actual yield/theoretical yield) x 100

Hope this helps :)

1. 👍
2. 👎
3. how did u get the molar ratio of 1 to 2. I was confused and thought it was 3 to 1. (1 iron oxide(|||) and 3 carbon monoxide )

1. 👍
2. 👎
4. 92% wc

1. 👍
2. 👎
5. sdewf

1. 👍
2. 👎

## Similar Questions

1. ### Chemestry

Iron metal reacts with oxygen gas to form rust, iron (III) oxide. Which of the following correctly shows the balanced equation for this reaction?

2. ### Chemistry-Equation

When iron rusts in air, iron(III) oxide is produced. How many moles of oxygen react with 2.4 mol of iron in the rusting reaction?

3. ### chemistry

iron(III) oxide reacts with carbon monoxide gas to form solid iron metal and carbon dioxide gas: Fe2O3 + 3 CO --> 2 Fe + 3 CO2 If you begin the reaction with 84.34 g of iron(III) oxide and 68.87 g of CO, which reactant will be in

4. ### Chemistry-Equations

Iron(III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7 g of Fe reacts completely with oxygen?

1. ### chemistry proofread

write the chemical equations for the following sentences a) Aluminum reacts with oxygen to produce aluminum oxide I put Al + O2 ----------> 2Al2O3 b) Phosphoric acid, H3PO4, is produced through the reaction between

2. ### Chemistry

Consider the following unbalanced reaction: Fe2O3 (s) + CO (g) --> Fe (s) + CO2 (g) How many moles of carbon dioxide are produced per mole of iron (III) oxide reacted?

3. ### chemistry

Iron reacts with chlorine to form iron(iii)chloride. A)How many chlorines react with 1.86g of iron? B)What mass of iron(iii)chloride is produced?

4. ### stoichiometry

When aluminum is mixed with iron(III) oxide, iron metal and aluminum oxide are produced along with a large quantity of heat. Fe2O3(s) + 2 Al(s) 2 Fe(s) + Al2O3(s) + heat What mole ratio would you use to determine moles Fe if moles

1. ### Last Question Plz helppp:((im soo sleepy!!:(

1)The reaction between solid sodium and iron(III) oxide, Fe2O3(s), is one in a series of reactions that occurs when an automobile air bag inflates. 6Na(s) + Fe2O3(s) -> 3Na2o(s) + 2Fe(s) If 100.0 g of iron(III) oxide are used in

2. ### chemistry

what would the equation be for: heating of iron III hydroxide crystals --> iron III oxide + water vapor

3. ### chemistry

Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron is produced when 35.0 moles of hematite react with 41.5 moles of carbon monoxide? Fe2O3(s) + 3 CO(g) 2 Fe(s) + 3 CO2(g)

4. ### chemistry

Iron (iii) hydroxide reacts with acetic acid to form iron (iii) acetate and water. If 45.4 grams of water are formed, how many grams of iron (iii) acetate will be produced? Fe(OH)3 + 3HC2H2O2 --> Fe(C2H3O2)3 + 3H2O