PreparED Study Materials
CHEM 131: General Chemistry I
School: Towson University
Number of Notes and Study Guides Available: 31
Notes
Study Guides
Videos
Electron Configuration of Phosphorus: Decoding Atomic & Orbital Struct
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the intricacies of the electron configuration for phosphorus, from its atomic number to its orbital notation. Learn about unpaired electrons, energy levels, and the significance of inner-shell electrons. Understand how orbital structures define an element's properties.
Amino Acid Structural Formulas at Low pH
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the protonation of amino acids, specifically valine and threonine, when subjected to a pH lower than their isoelectric points, highlighting the structural changes in their carboxyl and amino groups.
Why is the study of chiral molecules important in biochemistry?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This discussion highlights the significance of studying chiral molecules in biochemistry, emphasizing their impact on biological activity, molecular recognition, pharmacokinetics, and biomedical research, without revealing specific examples or findings.
Decoding Ions: Al³?, S²?, I?, Ag? & Their Electron-Proton Dynamics
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Break down the mysteries of ions like Al³?, S²?, I?, and Ag?. Discover how the electron count impacts ion charge by exploring Aluminium, Sulfur, Iodine, and Silver. Enhance your understanding of protons, electrons, and their relationship in ions.
Vaporization vs. Condensation: Heat Dynamics in Phase Transitions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unravel the science behind endothermic and exothermic processes by studying vaporization and condensation. Grasp the molecular changes involved and understand the role of heat in these transformations. A comprehensive look into why vaporization requires heat, while condensation releases it.
Aluminum & Iron(III) Oxide Reaction: Welding Heat & Calculations
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the chemical reaction between Aluminum and Iron (III) Oxide commonly used in welding. Learn to calculate the mass of Aluminum Oxide formed and identify the excess reagent. Dive deep into molar mass conversions stoichiometry and real-world applications in this chemistry tutorial.








































