[Chemistry] Chemical Reaction, limiting reactants and result stoichiometry

In summary, in this problem, 609.5 grams of vanadium (II) oxide and 832 grams of iron(III) oxide react according to the equation 2 VO + 3 Fe2O3 -> 6 FeO + V2O5. Using the mole ratios and molar masses, it is determined that the limiting reactant is Fe2O3 and the excess reactant is VO. The amount of products formed can also be calculated using the stoichiometric equation.
  • #1
bnosam
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Homework Statement



609.5 grams of vanadium (II) oxide, VO, and 832 grams of iron(III) oxide, Fe2O3, react according to the equation, which substance(s) and how many grams of each would be in the tube after the reaction completes? 3 points

Homework Equations


Equation:

2 VO + 3 Fe2O3 -> 6 FeO + V2O5

3.

1 mol VO = 66.94 g
1 mol Fe2O3 = 159.70 g

[itex]\frac{609.5 g VO}{66.94 g/mol VO} = 9.11 mol VO[/itex]

[itex]\frac{832 Fe_{2}O_{3}}{159.7 g/mol Fe_{2}O_{3}} = 5.21 molFe_{2}O_{3}[/itex]

The Attempt at a Solution


[itex]\frac{9.11 mol VO * 3 mol Fe_{2}O_{3}}{2 mol VO} = 13.6 mol Fe_{2}O_{3}[/itex]

[itex]\frac{5.21 mol Fe_{2}O_{3} * 2 mol VO}{3 mol Fe_{2}O_{3}} = 3.47 mol VO[/itex]So the limiting reactant would be [itex]Fe_{2}O_{3}[/itex], right?

I'm not quite sure where to go after this, any pointers in the right direction?

Thanks :)
 
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  • #2
Consume all the Limiting reagent to form products. Find the amount of excess reagent used with LR, find the amount of products. Balanced Stoichiometric equation helps.
 

What is a chemical reaction?

A chemical reaction is a process in which substances, known as reactants, are chemically transformed into different substances, known as products.

What is a limiting reactant?

A limiting reactant is the substance that is completely used up in a chemical reaction. It determines the amount of product that can be formed.

How do you determine the limiting reactant in a chemical reaction?

To determine the limiting reactant, you must compare the mole ratio of the reactants to the mole ratio required by the balanced chemical equation. The reactant with the lower mole ratio is the limiting reactant.

What is stoichiometry?

Stoichiometry is the calculation of the quantities of reactants and products in a chemical reaction based on the law of conservation of mass.

How do you calculate the amount of product formed in a chemical reaction?

The amount of product formed can be calculated using stoichiometry and the mole ratios from the balanced chemical equation. The moles of the limiting reactant are used to determine the moles of product formed.

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