Oct 07, 2024  
Catalog 2024-2025 
    
Catalog 2024-2025

CH 223 General Chemistry 3


Lecture Hours: 3
Lab Hours: 3
Credits: 5

Covers the rates and mechanisms of chemical reactions; fundamentals of chemical equilibrium; acid-base equilibria; ionic equilibria in aqueous systems; free energy concepts; voltaic/electrolytic cells; solid state and organic chemistry. Third of a three-term sequence designed for students majoring in scientific, engineering and medical fields.

Prerequisite: Placement into WR 115  (or higher), or completion of WR 090  (or higher); and completion of CH 222 ; or consent of instructor. (All prerequisite courses must be completed with a grade of C or better.)
Student Learning Outcomes:
  1. Generate and test scientific models in a logical and objective manner and use them to explain observed natural phenomena. 
  2. Collect, organize and analyze data and identify key trends and relationships. 
  3. Perform experiments safely, make clear observations, summarize data in tables, interface computers to chemical sensors, maintain laboratory notebooks and write clear and concise laboratory reports. 
  4. Critically compare and contrast the rates of chemical reactions and their position of equilibrium. 
  5. Develop and apply techniques for calculating and measuring the pH of solutions containing acids, bases, salts and buffers. 
  6. Construct and evaluate voltaic and electrolytic cells and demonstrate how they function under real-world conditions within batteries, fuel cells, corrosion, commercial electrolytic cells and biological applications.

 

Statewide General Education Outcomes:

  1. Gather, comprehend, and communicate scientific and technical information in order to explore ideas, models, and solutions and generate further questions.
  2. Apply scientific and technical modes of inquiry, individually, and collaboratively, to critically evaluate existing or alternative explanations, solve problems, and make evidence-based decisions in an ethical manner.
  3. Assess the strengths and weaknesses of scientific studies and critically examine the influence of scientific and technical knowledge on human society and the environment.


Content Outline
  • Equilibrium: The Extent of Chemical Reactions
    • Dynamic nature of the equilibrium state
    • Reaction quotient, reaction direction and the equilibrium constant
    • Using the ICE Scheme to solve equilibrium problems
    • Effects of concentration, pressure and temperature changes on the position of equilibrium
  • Acid-Base Equilibria
    • Acids/bases in water, the autoionization of water and the pH scale
    • Proton transfer, Bronsted-Lowry Theory and conjugate acids/bases
    • Solving weak acid-base equilibria problems
    • Molecular structure and acid strength
    • Hydrolysis of ions in aqueous salt solutions
    • Electron-Pair Transfer and Lewis Acid-Base Theory
  • Ionic Equilibria in Aqueous Systems
    • Equilibria of acid-base buffer systems
    • Equilibria of slightly soluble ionic compounds
    • Equilibria of coordination compounds and complex ions
  • Electrochemistry: Chemical Change and Electrical Work
    • Half-reactions and electrochemical cells
    • Voltaic cells: Using spontaneous reactions to generate electrical energy
    • Cell potential: Output of a voltaic cell
    • Concentration cells
    • Batteries, corrosion, and electrolytic cells: Cellular production of ATP
  • Solid State
    • Chemical bonds
    • Networking materials and unit cells
    • Alloys
  • Organic Compounds and the Atomic Properties of Carbon
    • The Special Nature of Carbon and the Characteristics of Organic Molecules
    • The Structures and Classes of Hydrocarbons
    • Some Important Classes of Organic Reactions
    • Properties and Reactivity of Common Functional Groups
    • The Monomer-Polymer Theme: Synthetic and Biological Macromolecules
  • Laboratory Experiments
    • Determination of an equilibrium constant
    • Studying the factors that affect equilibria (Le Châtelier’s Principle)
    • Preparation and analysis of solutions
    • Identification of an unknown diprotic acid by electrochemical titration
    • Qualitative analysis of a solution
    • Building and analyzing voltaic cells (batteries)
    • Electrolytic cells and their importance in industrial processes
    • Properties and size of an organic molecule