PreparED Study Materials
CHEM 177: General Chemistry I.
School: Iowa State University
Number of Notes and Study Guides Available: 17
Notes
Study Guides
Videos
Ethylene Glycol & Freezing Point in Antifreeze
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
We explore the impact of increasing the concentration of ethylene glycol in an antifreeze mixture, explaining the resulting effect on the freezing point of the solution by examining its interaction with water molecules.
Rutherford's Gold Foil: The Pivot to the Modern Nuclear Atom Model
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover Rutherford's pivotal Gold Foil Experiment and its impact on atomic theory. Unveil the discrepancies with the Plum Pudding Model. Grasp the birth of the nuclear atom model through unexpected alpha particle deflections.
Mastering Mass, Moles, Formula Units & Atoms
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover how to precisely calculate mass, moles, formula units, and atoms in various compounds. Understand the concept with examples like chromium(III) sulfate decahydrate, dichlorine heptoxide, and lithium sulfate. Master chemistry calculations through a step-by-step guide.
Molecular Formulas: Lewis Structures for N2, HCN, CO2, C3H6, and More
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover Lewis structures for various molecular formulas, including N2, HCN, CO2, C3H6, and more. Explore their chemical bonding and structural arrangements.
Pseudo-Noble Gas Configurations: A Unique Path to Atomic Stability
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the concept of the pseudo-noble gas configuration, differentiating it from the traditional noble gas configuration. Examine examples like tin and indium to illustrate how elements achieve this unique state of stability. Unpack the intriguing intricacies within atomic structures.
Synthesis, Decomposition Reactions, and Oxidation-Reduction
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
We explore synthesis and decomposition reactions, showcasing examples like the formation of water and its breakdown into simpler substances. We also clarify that while many of these reactions are redox reactions involving electron transfer, some synthesis and decomposition reactions may not necessarily be redox reactions, as seen in specific examples.





























