PreparED Study Materials
CHEM 1301: Chemistry
School: 1 MDSS-SGSLM-Langley AFB Advanced Education in General Dentistry 12 Months
Number of Notes and Study Guides Available: 1
Notes
Videos
The Wobble Concept: Explaining Codon Variability in Amino Acid Encodin
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Join us as we delve into the intriguing world of genetic coding and discover how the concept of wobble accounts for variations in codons encoding a single amino acid.
Chips Nutritional Energy and Body Fat Conversion
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover how to calculate the nutritional energy in a bag of chips, and learn the science behind converting excess energy into body fat.
Molecule Count in 0.334 g of C?H?: Ethane Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This instructional video guides you through the process of determining the number of molecules in a given sample. It illustrates the conversion from grams to moles using the molar mass of the substance and then to molecules using Avogadro's number, providing a practical example with ethane (C?H?) to calculate approximately 6.67 x 10²¹ molecules in a 0.334 g sample.
Vaporization vs. Condensation: Heat Absorption & Release
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the contrasting processes of vaporization and condensation and their thermal nature. Understand why boiling is endothermic, absorbing heat, while condensation is exothermic, releasing heat, and how these processes impact ?H values.
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