CHEM& 140 General Chem Prep w/Lab • 6 Cr.
Preparatory chemistry for science and engineering majors intending to take the general chemistry series (161/162 /163). Topics include: atomic structure, stoichiometry, solutions, bonding, acids-bases, and oxidation-reduction. A quantitative approach and problem solving is emphasized. Prerequisite: Math 099 (with C or better) or placement into Math 141 or higher.
After completing this class, students should be able to:Chemical Terms and Measurements
- Define chemistry and identify its major subfields.
- List and describe the key elements of the scientific method.
- Recognize and use prefixes in metric measurements.
- Identify the proper number of significant digits in a laboratory setting.
- Show knowledge of alternate methods for problem solving; such as dimensional analysis, ratios and proportions, and algebraic equations.
- Describe the general structure of the atom.
- Define atomic number and isotope; identify the number of electrons, protons, and neutrons in a specific atom.
- Extract information about an element from the periodic table: for example; the symbol, atomic number, atomic weight, and the number of protons and electrons.
- Describe the characteristics of a solid, a liquid, and a gas in terms of visible properties and the kinetic-molecular theory of matter.
- Describe the difference between chemical and physical properties/changes.
- Explain the concept of the mole.
- Compute molar masses of elements and compounds; use those molar masses in calculations involving masses and moles of chemical substances.
- Balance chemical equations.
- Interpret the information conveyed by a balanced chemical equation.
- Explain the historical development of the atomic theory.
- Explain the role of quantized energy in chemistry.
- Describe electromagnetic radiation in terms of frequency, wavelength, and speed.
- Identify the relationship between the electronic structure of an element and its position in the periodic table.
- Identify the number and location of valence electrons for main group elements.
- Describe the differences between molecular, ionic, and metallic substances.
- Write Lewis structures for atoms, ions, and molecules.
- Predict the geometry of molecules using VSEPR Theory.
- Write chemical equations, including net-ionic equations, for reactions in aqueous solution.
- Solve stoichiometric problems given a chemical equation.
- Explain the concept of a limiting reactant.
- Describe how hydrogen bonding affects the properties of water.
- Prepare solutions using concentration units of percent and molarity.
- Identify common acids and bases, both strong and weak.
- Explain that a buffer solution resists changes in pH.