PreparED Study Materials
Videos
Understanding Electron Configurations of Ions: The Noble Gas Connectio
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unravel the electron configurations of diverse ions and discern their noble gas resemblances. Understand how atoms and ions strive for full outer electron shells for ultimate stability.
0.800g Match to SO?: Volume Calculation at 725 Torr & 32°C!
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Detailed walkthrough of calculating sulfur dioxide gas volume produced from burning tetraphosphorus trisulfide. Utilizes stoichiometry and the Ideal Gas Law to derive results under specific conditions. Step-by-step guide for understanding chemical reactions and gas volume calculations
Calculating Vapor Pressure & Its Lowering: Urea in Water at 35°C
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the intriguing process of determining the vapor pressure of a urea-water solution at 35°C. Using Raoult's law we'll calculate the mole fraction of water and urea leading to the solution's vapor pressure. Learn how the solution's composition affects vapor-pressure lowering
Element Classification: Rep, Trans, Inner-Trans, Noble Gases
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
We categorize elements into representative, transition, inner-transition, and noble gases based on their positions in the periodic table and general characteristics, without revealing specific element classifications.
STP Reactions: How Phosphorus & Oxygen Form P?O??
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Grasp the concept of Standard Temperature and Pressure (STP) and its significance in chemistry. Through a practical example, this video elucidates how phosphorus reacts with oxygen at STP to produce tetraphosphorus decaoxide. Comprehensive mole calculations and chemical equations simplify this intriguing chemical process.
Lone Pair vs. Bonding Pair Electrons: Atomic Insights Unveiled
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the atomic world and the crucial distinctions between lone pair and bonding pair electrons in this insightful video. Delve into the fundamental aspects of atomic structure, electron orbitals, and their roles in chemical bonding, reactivity, and molecule formation.












