PreparED Study Materials
Notes
Videos
Determining Base Concentration Using KHP: Indicator Choice Solution
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Discover how to choose the right indicator for a titration involving Potassium hydrogen phthalate (KHP) and a strong base. Grasp the calculations from molar mass to pH and understand why Thymolphthalein is the ideal choice for a change near pH 8.95.
Hypothesis to Theory: The Evolution of Scientific Understanding
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Delve into the journey of scientific ideas as we discuss how a hypothesis can evolve into a theory, and whether a theory can ever become a law. Uncover the distinctions and connections between these fundamental elements of scientific understanding in this illuminating video.
Balancing Equations: From Lead Sulfide to Ammonia Reactions
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This video shows you how to balance equations from the reaction of lead(II) sulfide with hydrochloric acid to ammonia's interaction with oxygen. Understand the nuances of atom balancing and grasp the precise stoichiometric relationships.
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.
Identifying Redox Reactions & Agents: Four Chemistry Examples
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Explore oxidation and reduction processes across four chemical reactions differentiating between acid-base and redox activities. Highlighting key substances and their roles in each reaction.
Denver Pressure Conversion: Atmospheres mmHg psi & Pascals Explained
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Converting Denver's average pressure of 24.9 in. Hg into various units. This video provides clear steps to determine equivalents in millimeters of mercury atmospheres pounds per square inch and pascals. Understand the relationships and conversions between these common pressure units.





















