PreparED Study Materials
CHEM 470: Principles of Biochemistry
School: American University
Number of Notes and Study Guides Available: 0
Videos
Breaking Down Mixtures: Finding Mass Percent of Sodium Compounds
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Uncover the method to determine mass percentages of Sodium Bromide and Sodium Sulfate in a mixture using the given Sodium content. Walk through a step-by-step calculation leveraging molar masses to derive the composition. Discover the resulting mass percentages: 23.85% for Sodium Bromide and 76.15% for Sodium Sulfate
Drawing Open-Chain Structures: A Visual Guide to Four Sugars
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Learn how to draw open-chain structures for various sugars, from ketotetrose to amino sugars. This video offers visual demonstrations of ketopentose, deoxyaldohexose, and more, highlighting key molecular differences.
Intermolecular Forces in HCl, F?, and C?H??
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Explore the fascinating world of intermolecular forces in this brief video, featuring HCl, F?, and C?H?? molecules. Learn about the bonds that hold these substances together!
Understanding Polar & Nonpolar Molecules: From Diazene to Nitrogen Dio
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Explore the properties of various molecules like diazene, hydrogen peroxide, and carbon tetrafluoride. Understand the influence of molecular shape and electronegativity on polarity. Discover why some are polar while others are nonpolar based on their structure.
Dilution Calculations: Copper(II) Nitrate, Calcium Chloride, Lithium C
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Learn how to perform dilution calculations for solutions, including copper(II) nitrate, calcium chloride, and lithium carbonate, to achieve specific concentrations.
Ranking WO? Rb?SO? Pb(C?H?O?)? RbI by Decreasing Formula Mass
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Discover the method to rank compounds like Tungsten Dioxide Rubidium Sulfate Lead Acetate and Rubidium Iodide based on their formula masses. Learn about the significance and calculation of a compound's formula mass. Conclude with an ordered list from heaviest to lightest based on our calculations
