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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The balanced equation for the reduction of iron ore to the metal using CO is

Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g)

  1. (a) What is the maximum mass of iron, in grams, that can be obtained from 454 g (1.00 lb) of iron(III) oxide?
  2. (b) What mass of CO is required to react with 454 g cot Fe2O3?

(a)

Interpretation Introduction

Interpretation:

From the given reaction the mass of iron Fe(in gram) produced has to be determined.

Concept Introduction:

  Numberofmole=GivenmassofthesubstanceMolarmass

  • The molar mass of an element or compound is the mass in grams of 1 mole of that substance, and it is expressed in the unit of grams per mol (g/mol).
  • For chemical reaction balanced chemical reaction equation written in accordance with the Law of conservation of mass.
  • Law of conservation of mass states that for a reaction total mass of the reactant and product must be equal.
  • Stoichiometric factor is a relationship between reactant and product which is obtained from the balanced chemical equation for a particular reaction.
Explanation

Balanced chemical equation for the given reaction is,

  Fe2O3(s)+3CO(g)2Fe(s)+3CO2(g)

The amount (moles) of Fe2O3 available can be calculated by using the equation

  Numberofmole=GivenmassofthesubstanceMolarmass

  454gFe2O3×1molFe2O3159.69gFe2O3=2.843molFe2O3

Using the stoichiometric factor calculating the amount of Carbon monoxide required based on the amount of Fe2O3 as follows,

  2

(b)

Interpretation Introduction

Interpretation:

From the given reaction the mass of Carbon monoxide in gram is required to react with 454g of Fe2O3 has to be determined.

Concept introduction:

  Numberofmole=GivenmassofthesubstanceMolarmass

  • The molar mass of an element or compound is the mass in grams of 1 mole of that substance, and it is expressed in the unit of grams per mol (g/mol).
  • For chemical reaction balanced chemical reaction equation written in accordance with the Law of conservation of mass.
  • Law of conservation of mass states that for a reaction total mass of the reactant and product must be equal.
  • Stoichiometric factor is a relationship between reactant and product which is obtained from the balanced chemical equation for a particular reaction.

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