PreparED Study Materials
CHEM 4331: Biochemistry I: Structure, Catalysis, and Metabolism in Biological Systems
School: University of Minnesota
Number of Notes and Study Guides Available: 7
Notes
Study Guides
Videos
Converting Moles to Grams: Aluminum & Chlorine Atomic Mass Breakdown
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"Explore the intricate world of atomic masses using aluminum and chlorine as examples. Understand the concept of 'mole' and its relevance in chemistry. Learn to calculate masses of moles for elements based on atomic weights.
Understanding Boiling Points: Ethylene Glycol, Alcohols & Ethers Expla
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This video offers insights into the properties and boiling points of different alcohols and ethers, including antifreeze agents like ethylene glycol. We also discuss how molecular structures and interactions impact boiling points, shedding light on key differences among related compounds.
Drawing Lewis Structures for Ionic Compounds: SrO Li2S CaI2 & RbF
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Explore the art of constructing Lewis dot structures for ionic compounds such as SrO Li2S CaI2 and RbF. Understand the electron transfer process by diving into each atom's valency and its role in compound formation. Unpack the intricacies of ionic interactions for a deeper chemistry insight.
Identifying Fundamental Units in Rb?O, N?, Fe(NO?)?, and N?F?
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In this exploration, we delve into the fundamental units of various substances, whether they are single atoms, molecules, or formula units. We examine ionic compounds like Rb?O and Fe(NO?)?, characterized by formula units as their basic components, and covalent compounds like N? and N?F?, where molecules are the fundamental units.
Lattice Energy: Always Positive; Hydration Energy: Always Negative
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In this video we clarify why lattice energy in solids is always a positive value due to the energy needed to separate ions making it an endothermic process. On the flip side hydration energy is always negative as it releases heat when ions dissolve in water making it an exothermic reaction. We use sodium chloride as a real-world example to illustrate these crucial thermodynamic concepts
Kettle Scale Removal: Water Filling Calculation
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Learn a practical application of chemistry and mathematics in your daily life. Whether you're a tea or coffee enthusiast, this video offers valuable insights into scale removal and maintaining your kitchen appliances.