PreparED Study Materials
CHEM 147: Introductory Chemistry
School: University of Illinois
Number of Notes and Study Guides Available: 0
Videos
Drawing Lewis Structures for Potassium, Barium, Aluminum, and Bromine
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
We explore Lewis structures, which depict atom bonding and lone electron pairs. We create Lewis structures for potassium, barium, aluminum, and bromine by using group numbers in the periodic table to determine their valence electrons.
Converting Pressure Units to Atmospheres: mmHg, bars, Torr, kPa
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this instructional video, we explore the conversion of various pressure units into atmospheres, covering mmHg, bars, Torr, and kPa. The process involves utilizing conversion factors to ensure accurate results for each unit. By the end, you'll have equivalent pressures in atmospheres for the given values, enhancing your understanding of pressure conversions.
Orthorhombic Unit Cell: Decoding Nickel Sulfate's Crystal Density
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
The video offers an insightful look into the orthorhombic unit cell, a unique crystal lattice structure. By exploring nickel sulfate's unit cell and its specific dimensions, we determine both the number of formula units and the density of this crystalline structure.
8 kJ to
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Argon Isotopes: Protons, Neutrons & Electrons Breakdown
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the captivating branches of philosophy, understanding ethics as our moral guide, aesthetics as the interpreter of beauty, and logic as the foundation for clear reasoning. Delight in the insights these disciplines offer, enhancing our perspectives on life, art, and thought.


















