PreparED Study Materials
CHEM 2211: Organic Chemistry I
School: Suffolk University
Number of Notes and Study Guides Available: 0
Videos
Endothermic vs. Exothermic: Unraveling Heat Changes in Chemical Reacti
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Explore the intricacies of endothermic and exothermic reactions through everyday examples. Delve into the energy dynamics of ice melting and water freezing, while emphasizing the importance of the heat change (?H) in these processes.
Calculate a Building's Age Using Nickel-63 Decay
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The scenario involves an archaeologist analyzing iron in an old building containing nickel-63, which has a known half-life of 92 years. With only 0.78% of the original nickel-63 remaining, the goal is to estimate the year when this discovery was made. We delve into the calculations and principles of first-order decay reactions.
Decoding Ions: Al³?, S²?, I?, Ag? & Their Electron-Proton Dynamics
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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.
Density Explained: Calculating the Density of an Osmium Cube
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In this tutorial, we break down the principle of density, illustrating it as a measure of mass per unit volume. Using an osmium cube as a practical example, we walk viewers through the steps of computing its density, demonstrating the interplay between mass, volume, and particle arrangement.
Vaporization vs. Condensation: Heat Absorption & Release
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Discover the contrasting processes of vaporization and condensation and their thermal nature. Understand why boiling is endothermic, absorbing heat, while condensation is exothermic, releasing heat, and how these processes impact ?H values.
Homogeneous vs Heterogeneous Mixtures: Examples & Classification Expla
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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.
