PreparED Study Materials
CHEM 160: General Chemistry I
School: Rutgers University
Number of Notes and Study Guides Available: 15
Notes
Study Guides
Videos
H-Cl Bond Energy Explained: ?H Signs Formation & Breakage Dynamics
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the concept of bond energy with the H-Cl bond as a prime example. Delve into the energy dynamics of bond breaking (endothermic positive ?H) versus bond formation (exothermic negative ?H). Understand how the magnitude remains consistent but signs differ based on energy absorption or release.
Number of molecules in 3.5g H?O, 56.1g N?, 89g CCl?, 19g C?H??O?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video shows how to determine the number of molecules in a given sample by utilizing the concept of moles, Avogadro's number (6.022 x 10²³), and the molar mass of the substance. It provides step-by-step calculations for different substances, converting mass to the number of molecules and highlighting the versatile application of this approach.
Ethylene Glycol: Mass and Volume Calculations
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore how to calculate the mass and volume of ethylene glycol, a common antifreeze, using its density. Understand the essentials of density-related calculations.
Structural Isomers: C4H10, C5H12, C6H14, C2H5Cl, C2H4Cl2, C2H3Cl3
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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.
Glassware Drying with Acetone: The Science Behind It
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This discussion delves into the use of acetone as a solvent for removing water from laboratory glassware, exploring the science behind its effectiveness and the role of hydrogen bonding in facilitating rapid evaporation.
Constitution of Compounds: CH4O, CH3Cl, C2H6, CH5N, C2F6, C2H5Br, C3H8
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unraveling Molecular Structures: Explore the composition of compounds with molecular formulas CH4O, CH3Cl, C2H6, CH5N, C2F6, C2H5Br, and C3H8. Learn about their unique structures and properties.