PreparED Study Materials
CHEM 1145: Principles of Chemistry I
School: Georgia Southern University
Number of Notes and Study Guides Available: 3
Notes
Study Guides
Videos
Understanding Microwaves: Boiling Water's Time and Photon Count
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video breaks down the process of calculating the time and number of photons required to boil water in a microwave. Using given power, wavelength, and water specifics, we determine both energy needs and photon count.
Calculating [H?] in HNO? Solution Halfway to Equivalence with KOH
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unraveling HNO? Titration: Calculating [H?] Halfway with KOH. Harness the Henderson-Hasselbalch equation for pH determination. Discover the pH at midpoint between weak acid and strong base titration.
Homogeneous vs Heterogeneous Mixtures: Examples & Classification Expla
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the distinction between homogeneous and heterogeneous mixtures. Through real-world examples like baby oil, chocolate chip cookies, and wine, understand their uniformity, phases, and how components are distributed.
Electronegativity & Acid Strength: Decoding Acid Formulas
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video discusses how the electronegativity of attached groups affects the strength of acids. Comparing pairs such as Chloroacetic vs Fluoroacetic and Acetic vs Nitroacetic acids, we highlight which is the stronger acid in each pair and why.
Unveiling the Water-to-Salt Ratio in Barium Chloride Hydrate
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the process of determining the number of water molecules in a barium chloride hydrate. Through a reaction with sulfuric acid, the video highlights how to derive the formation of barium sulfate and its mass calculations. A comprehensive chemical analysis leads to finding the elusive 'x' value, revealing the water-to-salt ratio.