PreparED Study Materials
Notes
Videos
Specific Rotation Calculation: Polarimeter Demystified
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover how to calculate specific rotations of samples using a polarimeter in this informative chemistry tutorial. Explore optical activity and learn step-by-step calculations for two real-world examples. Enhance your understanding of specific rotation and its application in chemical analysis.
Mass Calc: C?F, MgF?, CS? & SO? Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Master the conversion of moles to grams with clear step-by-step guidance. Explore specific calculations for substances like carbon tetrafluoride and magnesium fluoride. Grasp the nuances of handling different units like millimoles and kilomoles in the context of substances such as carbon disulfide and sulfur trioxide
Mastering Mass, Moles, Formula Units & Atoms
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover how to precisely calculate mass, moles, formula units, and atoms in various compounds. Understand the concept with examples like chromium(III) sulfate decahydrate, dichlorine heptoxide, and lithium sulfate. Master chemistry calculations through a step-by-step guide.
Calculating Percent Composition: Using Molecular Formulas & Atomic Mas
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Understand the process of calculating percent composition using the molecular formula. Grasp the methodology with compounds like C2H4O2, CH2O2, and more. Discover how atomic masses influence the mass percent of elements in various compounds.
Strong Base Comparison: H?S?, CH?O?, CH?OH, Cl?, CH?COO?, CH?CHClCOO
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the reactivity of different bases in this chemistry comparison. We'll analyze the strength of H?S?, CH?O?, CH?OH, Cl?, CH?COO?, and CH?CHClCOO? in various reactions.
Weight% of Ba, K, Cl in Heated BaCl2·2H2O & KCl Mix
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video we explore the process of calculating the weight percent of barium potassium and chlorine in a mixed sample of barium chloride dihydrate and potassium chloride. Through a step-by-step approach we examine the changes in sample weight after heating to 160°C breaking down the calculations for each elemental content.



















