PreparED Study Materials
CH 227: General Chemistry Laboratory
School: University of Oregon
Number of Notes and Study Guides Available: 5
Notes
Study Guides
Videos
Electron Configurations: Zn Cu Zr & Fe Transition Metals Explained!
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unravel electron configurations for transition metals including zinc copper zirconium and iron. Understand how atomic number influences electron arrangement based on the Pauli exclusion principle Hund's rule and the Aufbau principle. Decode the configurations of each metal with clarity.
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.
Determining Bond Types: Ionic, Polar Covalent, or Covalent in Chemical
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This discussion revolves around the classification of chemical bonds as ionic, polar covalent, or covalent based on the electronegativity difference between the atoms involved. The general criteria for this classification are explained: a difference greater than 1.7 indicates an ionic bond, between 0.5 and 1.7 signifies a polar covalent bond, and less than 0.5 designates a covalent bond. It then applies these criteria to four specific examples, including the CC bond in ethane (H?CCH?), the KI bo
Hypothesis to Theory: The Evolution of Scientific Understanding
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Delve into the journey of scientific ideas as we discuss how a hypothesis can evolve into a theory, and whether a theory can ever become a law. Uncover the distinctions and connections between these fundamental elements of scientific understanding in this illuminating video.
Determining Formula Mass: Step-by-Step Approach Using Atomic Masses
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the method to determine the formula mass for various compounds. Learn about the importance of atomic masses and their role in compounds like Aluminium sulfate, Diphosphorus Trioxide, and more. Understand the step-by-step approach to accurately calculate molecular weights.
Key Biochemical Concepts: Polymer, Protein, Nucleic Acid, Catalysis, G
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In biochemistry, polymers are essential macromolecules, including carbohydrates, lipids, proteins, and nucleic acids, each adopting specific shapes and performing vital functions within cells, with proteins serving diverse roles, nucleic acids carrying genetic information, catalysis expediting reactions, and the genetic code enabling protein synthesis.









