PreparED Study Materials
CHM 254: Basic Concepts Org Chem
School: Marshall University
Number of Notes and Study Guides Available: 1
Notes
Videos
Iron Bar: Mass Change and Rust Formation
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Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.
Ethane Hydrazine or Fluoromethane: Which is Liquid at Room Temp?
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Explore the states of ethane hydrazine and fluoromethane at room temperature by understanding intermolecular forces. Learn about nonpolar molecules dipole-dipole interactions and the powerful influence of hydrogen bonding. Discover why hydrazine stands out as most likely to be a liquid in everyday conditions.
Why is Chloromethane Polar but Methane Nonpolar? Decoding Molecule Sha
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Explore the polar nature of Chloromethane and the nonpolar characteristics of Methane. Understand the impact of electronegativity differences and bond types. Deciphering molecular polarity through the lens of tetrahedral structures.
Calculating the Mass Percent Composition of Chloroform (CHCl?)
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In this video, we delve into the concept of percent composition by mass, exemplified through the compound chloroform (CHCl?), which was once employed as an inhalation anesthetic despite its associated toxicity. By calculating the percent composition for each element within the compound, we gain valuable insights into its composition and its potential effects on health and properties.
Key Biochemical Concepts: Polymer, Protein, Nucleic Acid, Catalysis, G
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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.
Diluting a 5.5 M KCl Solution to 0.100 M
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Learn the steps to make a 2.5 L of 0.100 M KCl solution from a 5.5 M stock solution in this easy-to-follow tutorial.










