PreparED Study Materials
CEM 141: General Chemistry
School: Michigan State University
Number of Notes and Study Guides Available: 5
Notes
Study Guides
Videos
Converting Various Units: Weight, Time, Height, and Volume
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video focuses on unit conversions and the practical use of conversion factors to translate quantities between different units. It provides clear examples of converting 70 kilograms to pounds, translating 14 billion years into seconds, changing the height of a basketball player from feet and inches to meters, and converting cubic meters to liters, illustrating the importance of this skill in various scientific and everyday scenarios.
Mass of Solutions: 12g Sucrose in 4.1%, 3.2%, & 12.5% Cases
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Determining the total mass of sucrose solutions at varying concentrations: 4.1% 3.2% and 12.5%. Learn step-by-step calculations to find solution masses containing 12 grams of sucrose. Results: ~292.68g ~375g and 96g for each concentration respectively.
CS?, SO?, CH?, & CH?Cl: Are They Polar or Nonpolar Molecules?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the polarity of Carbon disulfide, Sulfur dioxide, Methane, and Chloromethane. Learn how molecular shape influences electron distribution. Understand which molecules possess a net dipole moment and which ones don't.
Reaction Unveiled: From Nitrogen Dioxide & Hydrogen to Ammonia & Water
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the intriguing reaction of gaseous Nitrogen Dioxide and Hydrogen, resulting in the formation of Ammonia and Water. Grasp the significance of balanced chemical equations in respecting the law of conservation of mass. Dive into the properties and characteristics of each involved compound.
Calculating Water's Final Temp after a 345 kJ Heat Boost
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover how to determine the final temperature of a water sample after heat absorption. Utilizing the concept of specific heat capacity and the formula q = mc?T, we calculate the change in temperature and reveal its new state. Experience the transformation from an initial tepid state to a drastically altered thermal condition.
Why geometric isomerism is not possible in alkynes
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video provides insights into the concept of geometric isomerism in organic chemistry and explains why alkynes, which contain carbon-carbon triple bonds and adopt a linear structure, cannot exhibit this form of isomerism, unlike alkenes with double bonds that restrict rotation.