PreparED Study Materials
Notes
Videos
Producing Ammonium Sulfate: Calculating the Required Ammonia
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Discover the process to determine the quantity of ammonia (NH?) required to produce a specific amount of ammonium sulfate ((NH?)?SO?). Through a step-by-step explanation, learn the application of the balanced chemical equation and molar mass conversions. Transform theoretical chemistry into practical knowledge with this insightful guide.
Physical vs Chemical Changes: Understanding Reactions & Transformation
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Discover the differences between physical and chemical changes using common examples. Understand how sugar reacts in various scenarios, and how metals undergo changes, either maintaining their substance or forming new compounds.
Calculating [H?] in HNO? Solution Halfway to Equivalence with KOH
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Unraveling HNO? Titration: Calculating [H?] Halfway with KOH. Harness the Henderson-Hasselbalch equation for pH determination. Discover the pH at midpoint between weak acid and strong base titration.
Calculating the Mass Percent Composition of Chloroform (CHCl?)
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In this video, we delve into the concept of percent composition by mass, exemplified through the compound chloroform (CHCl?), which was once employed as an inhalation anesthetic despite its associated toxicity. By calculating the percent composition for each element within the compound, we gain valuable insights into its composition and its potential effects on health and properties.
Reaction Rate Impact: Ethanol, Tert-Butyl Bromide & Temp
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Explore the intricacies of reaction rates with varying concentrations of ethanol and tert-butyl bromide. Understand the principles of SN1 reactions and the impacts of temperature on rate acceleration. Grasp the core elements that influence and optimize chemical reactions in diverse applications.
CO?: Linear & Nonpolar with Temp Dipole Moments Explained!
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Uncover the nuances of the CO? molecule's polarity and its electron dynamics. Understand how bending and stretching motions influence its electron density. Grasp the analogy of CO? to a jumping rope, highlighting its overall nonpolar nature.