PreparED Study Materials
CH 4110: Biochemistry I
School: Worcester Polytechnic Institute
Number of Notes and Study Guides Available: 5
Notes
Study Guides
Videos
Chemical Formulas for Barium Hydroxide, Magnesium Sulfite, and More
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
This video discusses the process of writing chemical formulas for different compounds, providing details on the types and charges of ions involved in each compound's composition. The video concludes with the chemical formulas for barium hydroxide, magnesium sulfite, calcium carbonate, ammonium sulfate, and lithium hydrogen carbonate.
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
Decoding Acid Formulas: From Phosphoric to Sulfurous - Chemistry Insig
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the distinct chemical formulas of various acids like phosphoric, hydrobromic, and sulfurous acids. Understand their practical applications, from flavoring agents to sanitization in brewing. Highlighting their unique molecular makeup, learn the critical roles they play.
pAg in KI & AgNO3 Titration: Exploring 39mL & 44.30mL Volumes
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Exploring the titration of 25.00 mL of 0.08230 M KI with 0.05110 M AgNO3. This video breaks down the calculation process for the potential of silver ion at various volumes of added AgNO3: 39.00 mL equivalence point and 44.30 mL. With clear steps and using the solubility product constant understand how the potential of silver ion is determined for each scenario.
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.
Lattice Energy: Always Positive; Hydration Energy: Always Negative
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video we clarify why lattice energy in solids is always a positive value due to the energy needed to separate ions making it an endothermic process. On the flip side hydration energy is always negative as it releases heat when ions dissolve in water making it an exothermic reaction. We use sodium chloride as a real-world example to illustrate these crucial thermodynamic concepts






















