PreparED Study Materials
Notes
Videos
Calculating [H?] in HNO? Solution Halfway to Equivalence with KOH
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unraveling HNO? Titration: Calculating [H?] Halfway with KOH. Harness the Henderson-Hasselbalch equation for pH determination. Discover the pH at midpoint between weak acid and strong base titration.
Calculating the Mass Percent Composition of Chloroform (CHCl?)
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video, we delve into the concept of percent composition by mass, exemplified through the compound chloroform (CHCl?), which was once employed as an inhalation anesthetic despite its associated toxicity. By calculating the percent composition for each element within the compound, we gain valuable insights into its composition and its potential effects on health and properties.
Weighting Epsom Salts for Baths & CO? in Soda: Molecular Insight
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn the step-by-step process to convert moles into grams using the molecular weight of Epsom salts (MgSO?) and carbon dioxide (CO?). From bathtub to soda bottle understand the science behind the amounts
Iron Bar: Mass Change and Rust Formation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.
Reversible Enzyme Inhibition: Good or Bad? Exploring Implications
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Delve into the complex world of enzymes and explore the implications of their reversible inhibition, shedding light on whether it's advantageous or detrimental to biological processes."
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.

















