Ch.13 - Chemical KineticsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Ammonia reacts with oxygen according to the equation: 4 NH3(g) + 5 O2(g) => 4 NO(g) + 6 H2O(l). In an experiment in which the rate of change of nitric oxide is found to be 1.10 M/min, what is the r

Problem

Ammonia reacts with oxygen according to the equation: 4 NH3(g) + 5 O2(g) => 4 NO(g) + 6 H2O(l). In an experiment in which the rate of change of nitric oxide is found to be 1.10 M/min, what is the rate of change of oxygen gas?

A. 0.880 M/min

B. –0.880 M/min

C. –1.38 M/min 

D. –0.220 M/min

E. –0.275 M/min

Solution

We're being asked to calculate the rate of change of oxygen gas if nitric oxide is found to be 1.10 M/min.

4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(l)


Recall that the average rate of a reaction is given by:


Rate=[A] time


where Δ[A] = change in concentration of reactants or products (in mol/L or M) and Δtime = change in time. We can simply do a rate-to-rate comparison based on the stoichiometric coefficients.

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