PreparED Study Materials
Notes
Videos
Unveiling the Water-to-Salt Ratio in Barium Chloride Hydrate
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the process of determining the number of water molecules in a barium chloride hydrate. Through a reaction with sulfuric acid, the video highlights how to derive the formation of barium sulfate and its mass calculations. A comprehensive chemical analysis leads to finding the elusive 'x' value, revealing the water-to-salt ratio.
Electronegativity & Acid Strength: Decoding Acid Formulas
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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.
Molarity Calculations for Various Solutions: CH?OH, CaCl?, C??H?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Learn how to calculate the molarity of different solutions containing methanol, calcium chloride, and naphthalene. Essential for chemistry enthusiasts.
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:
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.
Validating & Correcting Chemical Equations: Ba(NO?)? to LiCl Reactions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Dive into the accuracy of four chemical reactions involving compounds like Barium Nitrate and Lithium Chloride. Discover which reactions yield precipitates which are correct and which need correction. A comprehensive review from Barium Sulfate formation to Lead Chloride precipitation