PreparED Study Materials
Notes
Videos
Comparing Masses: Analyzing Water, Ethanol, Chloroform & Balsa Wood
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the relationship between mass, density, and volume using real-life examples, including water, ethanol, chloroform, and balsa wood. Learn the process of calculating mass and uncover which substance has the highest mass based on given conditions.
Lewis Structures with Atom Connections & Charges
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn how to create Lewis structures for various molecules and assign charges where needed. Understand the molecular connectivity and electron distribution.
Strong vs. Weak Acids: Ionization Differences in Water
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Uncover the distinct behaviors of hydrochloric acid and acetic acid in water. Learn about the complete ionization of strong acids and the partial ionization of weak ones, emphasizing the differentiation in proton donation.
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.
Calculating the Mass of a Sucrose Crystal: A Chemistry Insight
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fascinating world of chemistry as we calculate the mass of a sugar crystal with 1.8 x 10¹? molecules of sucrose. Using the concept of a mole and Avogadro's number, discover how to convert molecular numbers to milligrams. Grasp foundational principles in a clear, engaging format.
Volume of 49.8g HCl Gas at STP: Finding the Answer in Liters
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video guides viewers through the process of calculating the volume occupied by Hydrochloric acid gas or HCl at standard temperature and pressure. Using the molar mass of HCl and its properties as an ideal gas the tutorial comprehensively explains each step to determine the volume from a given mass at STP. A must-watch for understanding gas volume conversions in chemistry






