Ch.3 - Chemical ReactionsWorksheetSee 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: Consider the reaction:4 HCl(g) + O2(g) → 2 H2O(g) + 2 Cl2(g)Each molecular diagrams represents an initial mixture of the reactants.How many molecules of Cl2 would be formed from the reaction mixture t

Solution: Consider the reaction:4 HCl(g) + O2(g) → 2 H2O(g) + 2 Cl2(g)Each molecular diagrams represents an initial mixture of the reactants.How many molecules of Cl2 would be formed from the reaction mixture t

Problem
Consider the reaction:

4 HCl(g) + O2(g) → 2 H2O(g) + 2 Cl2(g)

Each molecular diagrams represents an initial mixture of the reactants.

Three space-filling molecular diagrams labeled a, b, and c. Diagram a is a collection of seven molecules composed of a green and smaller white sphere combined, and one molecule composed of two red spheres combined. Diagram b is a collection of six molecules composed of a green and smaller white sphere combined, and three molecules composed of two red spheres combined. Diagram c is a collection of four molecules composed of a green and smaller white sphere combined, and five molecules composed of two red spheres combined.

How many molecules of Cl2 would be formed from the reaction mixture that produces the greatest amount of products?

Solution

HCl is oxidized by O2 to produce water and Cl2. We have three different mixtures of reactants and we have to determine which mixture produces the greatest amount of Cl2 gas.


We will solve for the number of molecules of Cl2 from each reactant mixture and determine the limiting reactant in each case.


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