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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

Give the relative rates of disappearance of reactants and formation of products for each of the following reactions.

  1. (a) 2 O3(g) → 3 O2(g)
  2. (b) 2 HOF(g) → 2 HF(g) + O2(g)

(a)

Interpretation Introduction

Interpretation: The rate of disappearance of reactants and formation of products has to be given.

Concept introduction:

Relative rates and stoichiometry: During a chemical reaction, amounts of reactant decrease with time and amounts of products increases.

  Reaction Rate = - 1coefficientΔ[reactants]Δt = +1coefficient Δ[products]Δt

Answer

Reaction Rate = - 12Δ[O3]Δt = +13 Δ[O2]Δt

Explanation

The relative rate of the chemical reaction is given as

  Reaction Rate = - 1coefficientΔ[reactants]Δt = +1coefficient Δ[products]ΔtGivenreaction: 2O3(g)3O2(g)Reactant: 2O3(g)Product: 3O2(g) The red colored numbers represent the stoichiometry coefficients.Reaction Rate = - 12Δ[O3]Δt = +13 Δ[O2]Δt

The relative rate of the given chemical reaction is,

  Reaction Rate = - 12Δ[O3]Δt = +13 Δ[O2]Δt

(b)

Interpretation Introduction

Interpretation: The rate of disappearance of reactants and formation of products has to be given.

Concept introduction:

Relative rates and stoichiometry: During a chemical reaction, amounts of reactant decrease with time and amounts of products increases.

  Reaction Rate = - 1coefficientΔ[reactants]Δt = +1coefficient Δ[products]Δt

Answer

Reaction Rate = - 12Δ[HOF]Δt = +12 Δ[HF]Δt=+11 Δ[O2]Δt

Explanation

The relative rate of the chemical reaction is given as

  Reaction Rate = - 1coefficientΔ[reactants]Δt = +1coefficient Δ[products]ΔtGivenreaction: 2 HOF(g)2HF(g) +1O2(g)Reactant: 2 HOF(g)Product: 2HF(g) +1O2(g)The red colored numbers represent the stoichiometry coefficients.Reaction Rate = - 12Δ[HOF]Δt = +12 Δ[HF]Δt=+11 Δ[O2]Δt

The relative rate of the given chemical reaction is,

  Reaction Rate = - 12Δ[HOF]Δt = +12 Δ[HF]Δt=+11 Δ[O2]Δt

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