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15. Chemical Kinetics

Stoichiometric Rate Calculations

15. Chemical Kinetics

Stoichiometric Rate Calculations

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Stoichiometric Rate Calculations Concept 1

Stoichiometric Rate Calculations Concept 1

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14.1 Rate Expressions and the Rate of Reaction | General Chemistry

14.1 Rate Expressions and the Rate of Reaction | General Chemistry

Introduction to reaction rates | Kinetics | AP Chemistry | Khan Academy

Introduction to reaction rates | Kinetics | AP Chemistry | Khan Academy

Khan Academy Organic Chemistry

14.1 Rates and Rate Expressions

14.1 Rates and Rate Expressions

19.3: Reaction Rates and Stoichiometry

19.3: Reaction Rates and Stoichiometry

Practice this topic

Multiple Choice

Using the following data, determine the order of the reaction with respect to [NO₂^–].

Data Table for Three Experiments
Experiment	Initial [NH₄⁺]	Initial [NO₂]	Initial rate (M/s)
Experiment 1	0.24 M	0.10 M	7.2 × 10^-6 M/s
Experiment 2	0.12 M	0.10 M	3.6 × 10^-6 M/s
Experiment 3	0.12 M	0.15 M	5.4 × 10^-6 M/s

Multiple Choice

Using the data below (also from question 6), determine the overall order of the reaction.

Data Table for Three Experiments
Experiment	Initial [NH₄⁺]	Initial [NO₂]	Initial rate (M/s)
Experiment 1	0.24 M	0.10 M	7.2 × 10^-6 M/s
Experiment 2	0.12 M	0.10 M	3.6 × 10^-6 M/s
Experiment 3	0.12 M	0.15 M	5.4 × 10^-6 M/s

Multiple Choice

Write the rate law for the following mechanism:

Step 1: NO₂ + NO₂ → NO₃ + NO (slow)

Step 2: NO₃ → NO + O₂ (fast)

Textbook Question

(a) Consider the combustion of hydrogen, 2 H21g2 + O21g2 ¡ 2 H2O1g2. If hydrogen is burning at the rate of 0.48 mol>s, what is the rate of consumption of oxygen? What is the rate of formation of water vapor?

Textbook Question

Ammonia is manufactured in large amounts by the reaction N21g2 + 3 H21g2S 2 NH31g2 (b) How is the rate of formation of NH3 related to the rate of consumption of N2?

Textbook Question

Chlorite is reduced by bromide in acidic solution according to the following balanced equation: ClO2 -1aq2 + 4 Br-1aq2 + 4 H+1aq2S Cl-1aq2 + 2 Br21aq2 + 2 H2O1l2 (a) If Δ3Br24>Δt = 4.8 * 10-6 M>s, what is the value of Δ3ClO2 -4>Δt during the same time interval?

Textbook Question

For each of the following gas-phase reactions, indicate

how the rate of disappearance of each reactant is related

to the rate of appearance of each product:

(b) 2 N₂O(g) → 2 N₂(g) + O₂(g)

Textbook Question

For each of the following gas-phase reactions, indicate how the rate of disappearance of each reactant is related to the rate of appearance of each product:

(d) C₂H₅NH₂(g) → C₂H₄(g) + NH₃(g)

Textbook Question

For each of the following gas-phase reactions, write the rate expression in terms of the appearance of each product and disappearance of each reactant:

(a) 2 H₂O(g) → 2 H₂(g) + O₂(g)

Textbook Question

Ammonia is manufactured in large amounts by the reaction

N₂(g) + 3 H₂(g) → 2 NH₃(g)

(a) How is the rate of consumption of H₂ related to the rate of consumption of N₂?

Multiple Choice

The formation of alumina, Al₂O₃, can be illustrated by the reaction below:

4 Al (s) + 3 O₂ (g) → 2 Al₂O₃ (s)

At 750 K it takes 267 seconds for the initial concentration of Al₂O₃ to increase from 6.18 x 10^-5 M to 5.11 x 10^-4 M. What is the average rate of Al?

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