PreparED Study Materials
CHEM 122: General Chemistry I Lecture
School: University of Illinois at Chicago
Number of Notes and Study Guides Available: 5
Notes
Study Guides
Videos
Pure Substances vs. Mixtures: Classifying Based on Composition & Distr
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Understand the fundamental distinctions between pure substances and mixtures. Unpack the definitions and real-world examples of elements, compounds, homogeneous, and heterogeneous mixtures.
Comparing Viscosity: Why C5H11OH is 12x Thicker than C6H14 at 20°C
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the intriguing contrast between Pentanol and Hexane's viscosity at 20 degrees Celsius. Uncover how molecular interactions influence a liquid's 'thickness' and discover why similar molecular weights can lead to vastly different substance properties
Lattice Energy: Always Positive; Hydration Energy: Always Negative
Want To Learn More? To watch the entire video and ALL of the videos in the series:
In this video we clarify why lattice energy in solids is always a positive value due to the energy needed to separate ions making it an endothermic process. On the flip side hydration energy is always negative as it releases heat when ions dissolve in water making it an exothermic reaction. We use sodium chloride as a real-world example to illustrate these crucial thermodynamic concepts
Ether Structures: Ethyl to Dipentyl Varieties Drawn
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the chemical structures of four distinct ethers: ethyl propyl ether dibutyl ether methyl hexyl ether and dipentyl ether. Understand the role of ether groups which involve an oxygen atom connected to two alkyl or aryl groups.
Quantifying Atoms Molecules & Moles: A Comprehensive Chemistry Guide
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Grasp the fundamental concept of moles in chemistry by equating it to the universally understood notion of a dozen. This video breaks down the usage of Avogadro's constant demonstrating calculations from moles to particles and vice versa. Using real-world examples like Carbon atoms Sulfur Dioxide molecules and Iron atoms viewers gain a clear understanding of moles and particle conversions
Where in the cell does fatty acid catabolism take place?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video explores the process of fatty acid catabolism, highlighting its occurrence in the mitochondria, the crucial role of mitochondria in energy generation, and the metabolic reactions involved without revealing specific details or conclusions.