CHEM 120 (CHEM120)

Precipitation and Solubility Equilibrium Problems. Ion concentration, solving for Ksp (solubility equilibrium, molar solubility, ICE tables, ranking most soluble-least soluble, Factors affecting solubility, balancing redox reactions, electrochemistry

Practice problems related to exams 2-4: chemical equilibrium, ICE table problems, EICE tables, Entropy and Free Energy, Acids and Bases, buffers, finding pKa/pH, Precipitation and Solubility equilibrium, electrochemistry

Notes taken on the topic of acids and bases as taught by Dr. Williamson in CHEM 120 at TAMU. These notes provide an all-around in-depth explanation of acids and bases. They begin with definitions of Lewis acids and bases as well as Bronsted-Lowry acids and bases. The rules for all these acids and bases are then described, showing the separation between strong and weak acids and bases. The rules across the periodic table are shown, describing the electronegative trend. The relation of these acids...

Notes taken on the topic of buffers as taught by Dr. Williamson in CHEM 120 at TAMU. These notes show some examples of RICE tables used for buffers to calculate Ka, Kb, pH, and/or pOH. They then describe and show how to use the Henderson Hasselbalch Equation to calculate the pH or pOH of a buffer solution which is an imperative skill in chemistry. Finally, they describe how else these buffers are sued and other applications.

Notes taken on the topic of Electrochemistry as taught by Dr. Williamson in CHEM 120 at TAMU. These Notes describe single displacement reactions and go well into depth on oxidation numbers and how to calculate them. It then furthers this idea by providing information on how to balance REDOX Equations stoichiometrically. The notes then move on to describing voltaic cells and the electrochemical cells and electrodes within. These cells are used to calculate cell potential using REDOX reaction rule...

Notes taken on the topic of equilibrium as taught by Dr. Williamson in CHEM 120 at TAMU. These notes describe the equilibrium constant K and explores its magnitude, properties, variations, and formulas. It provides multiple equations such as gas laws and converting Kp to Kc. It then briefly shows how to use RICE tables and how Q (reaction quotient) relates to the K expression in a chemical reaction. Next, it explores this relationship again, but through Le Chatlier's Principle which describes th...

Notes taken on the topic of Kinetics as taught by Dr. Williamson in CHEM 120 at TAMU. These notes contain information about the kinetics of chemical reactions starting with the bases of reaction rate and reaction mechanisms. It describes how to calculate average, instantaneous, and initial rates of reactions and the factors such as surface area, concentration, temperature, and catalysts that affect these reactions. It then describes collision theory, rate law, and the rate constant k and its fac...

Notes taken on the topic of solubility as taught by Dr. Williamson in CHEM 120 at TAMU. These notes contain a brief introduction to saturated terms and provide definitions, as well as descriptions and further notes on Ksp (solubility product constant). It provides examples of how to calculate Ksp from molecules such as BaSO4 and Ag2CrO4 using algebraic equations. It also shows how to use ICF tables to calculate these values. Finally, it provides some easy tips to remember equilibrium shifts.

Notes taken on the topic of solutions as taught by Dr. Williamson in CHEM 120 at TAMU. Covers topics such as the solubility of solutions and definitions of what a solution is, including solvent versus solute definitions. Also contains various ways to measure concentration and their corresponding formulas (molarity, molality, weight %, mole fraction, etc.). Deals with colligative properties, vapor pressure, boiling point, freezing point, osmotic pressure, and their corresponding calculations and ...

Notes taken on the topic of thermodynamics as taught by Dr. Williamson in CHEM 120 at TAMU. These notes cover topics such as enthalpy, entropy, Gibbs free energy, and spontaneity. Additionally, it provides some calculations for these terms and ways to remember certain patterns in energy conservation as well as thermodynamic laws that are applicable to chemical reactions.