PreparED Study Materials
CHEM 122: CHEM 122
School: University of Massachusetts
Number of Notes and Study Guides Available: 6
Notes
Videos
Electron Configuration of Phosphorus: Decoding Atomic & Orbital Struct
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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.
Copper Bombardment: Calculating X-ray Photon Energy
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We'll guide you through the process of calculating the energy associated with X-ray photons when the wavelength is 0.154 nm. This video offers a practical application of physics and helps you understand the energy spectrum of X-rays. Whether you're a science enthusiast or a student, you'll gain valuable insights into this intriguing topic.
Precipitation Reactions Explained: From Solution to Solid Formation
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Unravel the chemistry behind precipitation reactions and the creation of insoluble salts. Learn how aqueous ions interact to form solid precipitates, illustrated with examples like silver nitrate and sodium chloride. Understand their significance in fields from water treatment to qualitative analysis.
CS?, SO?, CH?, & CH?Cl: Are They Polar or Nonpolar Molecules?
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Explore the polarity of Carbon disulfide, Sulfur dioxide, Methane, and Chloromethane. Learn how molecular shape influences electron distribution. Understand which molecules possess a net dipole moment and which ones don't.
Determining Formula Mass: Step-by-Step Approach Using Atomic Masses
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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.
Sketching Lewis Structures: Radical Species ClF? and BrO? Explained
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This video elucidates the method to sketch Lewis structures for the radical species ClF? and BrO?. Highlighting the distinguishing feature of an unpaired electron, we illustrate the bond arrangements and lone pairs that define these unique chemical entities.













