   # Give the relative rates of disappearance of reactants and formation of products for each of the following reactions. (a) 2 O 3 (g) → 3 O 2 (g) (b) 2 HOF(g) → 2 HF(g) + O 2 (g) ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter
Section ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 14, Problem 1PS
Textbook Problem
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## Give the relative rates of disappearance of reactants and formation of products for each of the following reactions. (a) 2 O3(g) → 3 O2(g) (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

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

### Explanation of Solution

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

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

### Explanation of Solution

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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