PreparED Study Materials
CHEM 1045: General Chemistry Lab
School: Virginia Polytechnic Institute and State University
Number of Notes and Study Guides Available: 38
Notes
Study Guides
Videos
Chromium Oxides: Acidity Comparison in Water
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Compare the acidity of chromium trioxide (CrO?) and chromium (II) oxide (CrO) in water. Chromium trioxide forms strong chromic acid increasing hydronium ions, while chromium (II) oxide has weaker oxidizing properties, resulting in a less acidic solution.
Why is Chloromethane Polar but Methane Nonpolar? Decoding Molecule Sha
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the polar nature of Chloromethane and the nonpolar characteristics of Methane. Understand the impact of electronegativity differences and bond types. Deciphering molecular polarity through the lens of tetrahedral structures.
Balancing the Photosynthesis Equation: CO?, H?O to Glucose & O?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the balanced chemical equation for photosynthesis, where CO? and H?O produce glucose and O?. Uncover the step-by-step breakdown of the equation, ensuring atom balance. Grasp a clear understanding of this vital process in plant biology.
Determining Base Concentration Using KHP: Indicator Choice Solution
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover how to choose the right indicator for a titration involving Potassium hydrogen phthalate (KHP) and a strong base. Grasp the calculations from molar mass to pH and understand why Thymolphthalein is the ideal choice for a change near pH 8.95.
Mastering Ionic and Net Ionic Equations for Varied Chemical Reactions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the art of writing balanced, complete ionic, and net ionic equations for various chemical reactions. Learn the nuances that differentiate between these equations and watch them applied to diverse chemical reactants.
Classifying the Boiling of Water: Physical or Chemical Change? Justify
Want To Learn More? To watch the entire video and ALL of the videos in the series:
This video tackles the classification of boiling water as either a physical or chemical change, examining the provided options. We conclude that boiling is a physical change, as the water's chemical composition remains the same during the transition from liquid to gas.