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.
Vaporization vs. Condensation: Heat Dynamics in Phase Transitions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unravel the science behind endothermic and exothermic processes by studying vaporization and condensation. Grasp the molecular changes involved and understand the role of heat in these transformations. A comprehensive look into why vaporization requires heat, while condensation releases it.
Molar Mass Calculation: Sr(OH)2 N2O3 NaClO3 Cr2O3 Explained!
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this chemistry tutorial learn how to calculate the molar mass of various compounds using atomic masses from the periodic table. Discover the molar mass for compounds such as Strontium Hydroxide Dinitrogen Trioxide Sodium Chlorate and Chromium(III) Oxide. A concise guide to understanding molar masses and their real-world applications.
The original sulfur quantity (tons) for 26M tons SO?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the environmental impact of sulfur dioxide production, revealing how 26 million tons of this compound conceal 13 million tons of sulfur. It delves into the chemistry of this transformation, converting atomic and molecular masses, providing valuable insights into emissions from activities like burning coal and auto exhaust."
Mole Fractions, Partial Pressures, and Total Pressure Calculation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the calculations for mole fractions, partial pressures, and total pressure in a 22.4 dm³ vessel with H? and N? at 273.15 K.
Pure Substances vs. Mixtures: Classifying Based on Composition & Distr
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Understand the fundamental distinctions between pure substances and mixtures. Unpack the definitions and real-world examples of elements, compounds, homogeneous, and heterogeneous mixtures.

















