PreparED Study Materials
Notes
Study Guides
Videos
Decoding Electron Configurations: From Rubidium to Argon Explained
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Explore the intricacies of electron configurations around the atomic nucleus. Understand the ordered filling of energy levels in atoms like Rubidium, Germanium, and Argon. A deep look into the ground-state configurations of key elements.
Volume of 49.8g HCl Gas at STP: Finding the Answer in Liters
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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
Calculating Ksp for Ca3(PO4)2 at 25°C: Step-by-Step Guide
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Unravel the concepts of 'Molar Solubility' and 'Solubility Product' to gauge salt solubility. Explore how Calcium Phosphate dissociates in solutions and calculate its unique Ksp value.
Electronegativity & Acid Strength: Decoding Acid Formulas
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This video discusses how the electronegativity of attached groups affects the strength of acids. Comparing pairs such as Chloroacetic vs Fluoroacetic and Acetic vs Nitroacetic acids, we highlight which is the stronger acid in each pair and why.
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.
Key Biochemical Concepts: Polymer, Protein, Nucleic Acid, Catalysis, G
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In biochemistry, polymers are essential macromolecules, including carbohydrates, lipids, proteins, and nucleic acids, each adopting specific shapes and performing vital functions within cells, with proteins serving diverse roles, nucleic acids carrying genetic information, catalysis expediting reactions, and the genetic code enabling protein synthesis.

























