PreparED Study Materials
Notes
Videos
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.
Calculating Silver Density from Weight and Water Displacement
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Learn how to find the density of silver using weight and water displacement. A step-by-step guide to a common laboratory technique.
Classifying Formaldehyde, Methanol, Dichloromethane & CO?: Polar or No
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Explore the classification of select molecules based on their polarity. Understand the electron distribution and molecular shapes of Formaldehyde, Methanol, Dichloromethane, and Carbon dioxide. Discover which ones exhibit a net dipole moment and which ones don't.
Determining Bond Types: Ionic, Polar Covalent, or Covalent in Chemical
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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
Intermolecular Forces: Comparing Properties of Key Chemical Compounds
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Discover the effects of intermolecular forces on the boiling point, freezing point, and vapor pressure of various compounds. Learn how hydrogen bonding, ionic bonding, and London dispersion forces influence these properties in different groups of molecules.
Structural Isomers: C4H10, C5H12, C6H14, C2H5Cl, C2H4Cl2, C2H3Cl3
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Explore the diverse world of structural isomers! Learn how to draw structures for all constitutional isomers with various molecular formulas, including C4H10, C5H12, C6H14, C2H5Cl, C2H4Cl2, and C2H3Cl3.


















