PreparED Study Materials
CHEM 121: General Chemistry I
School: University of North Dakota
Number of Notes and Study Guides Available: 23
Notes
Study Guides

Chemistry study guide 10/17/2016 (Chemistry)
CHEM 121
University of North Dakota
5 pages | Fall 2016
Videos
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
False Statements on the Periodic Table
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us in this video as we debunk common misconceptions about the periodic table. We explore and clarify statements regarding atomic size, electron configurations, reactivity, and electron removal. Dive into the world of chemistry and gain a deeper understanding of the periodic table's fascinating principles.
Differentiating Strong & Weak Electrolytes: Ionization in Aqueous Solu
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the difference between strong and weak electrolytes by understanding their ionization in water. Using nitrous acid and nitric acid as examples, this video provides chemical equations that visually distinguish the ionization behavior of these electrolytes.
Atomic Radius Trends: Unveiling Periodic Table Secrets
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the intricacies of atomic radius and its trends on the periodic table in this video. Unravel the factors influencing atomic size and explore how elements' positions on the periodic table affect their atomic radii.
From CH? to C?H?: Decoding Molecular Formula with Molar Mass
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the process of determining a compound's molecular formula from its empirical formula and molar mass. Understand the calculations and reasoning behind deriving C?H? from the empirical formula CH? with a molar mass of 56.11 g/mol. Gain insight into fundamental chemistry concepts and computations.
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.



























