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Ch.13 - Chemical KineticsWorksheetSee all chapters

# Stoichiometric Rate Calculations

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Sections
Intro to Chemical Kinetics
Energy Diagrams
Catalyst
Factors Influencing Rates
Average Rate of Reaction
Stoichiometric Rate Calculations
Instantaneous Rate
Collision Theory
Arrhenius Equation
Rate Law
Reaction Mechanism
Integrated Rate Law
Half-Life

When the rate of one compound is know, the rate of another compound is calculated through rate-to-rate comparison.

###### Stoichiometric Rate Calculations

Concept #1: If the rate of decomposition of H2 is 1.54 M/min at a particular time, what would be the rate of formation of N2 at that same time.

2 NO (g) + 2 H2 (g) → N2 (g) + 2 H2O (g)

Practice: 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?