PreparED Study Materials
CHM 212: Principles of Chemistry II
School: Marshall University
Number of Notes and Study Guides Available: 3
Notes
Videos
Drawing Lewis Structures for Ionic Compounds: SrO Li2S CaI2 & RbF
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the art of constructing Lewis dot structures for ionic compounds such as SrO Li2S CaI2 and RbF. Understand the electron transfer process by diving into each atom's valency and its role in compound formation. Unpack the intricacies of ionic interactions for a deeper chemistry insight.
Sketching Lewis Structures: Radical Species ClF? and BrO? Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video elucidates the method to sketch Lewis structures for the radical species ClF? and BrO?. Highlighting the distinguishing feature of an unpaired electron, we illustrate the bond arrangements and lone pairs that define these unique chemical entities.
Calculating MgO Mass from Oxygen Gas at STP
Want To Learn More? To watch the entire video and ALL of the videos in the series:
In this video, the problem involves calculating the mass of magnesium oxide (MgO) produced when 14.8 liters of oxygen gas react with magnesium metal according to the chemical equation 2Mg + O2 -> 2MgO. The stoichiometric relationship is used to determine that 0.6607 moles of oxygen gas results in 1.3214 moles of MgO, with a final calculation yielding a mass of 53.25 grams of MgO formed during the reaction at Standard Temperature and Pressure (STP).
Cyclohexane to Adipic Acid: Nylon's Yield Calculations
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the fascinating conversion of cyclohexane and oxygen into adipic acid, essential in nylon manufacture. This video breaks down the calculation of theoretical yield, actual yield, and the resultant percent yield of the process. From molar masses to intricate equations, get a concise understanding of this industrial reaction.
Calculating Percent Error: Insights into Experiment Accuracy & Refinem
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the importance of calculating percent error to assess the precision of experiments. Through real-world examples like measuring alcohol's density and the mass of gold, learn how this value offers insights into measurement accuracy and ways to refine methods.
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:
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