Science Homework Help

Chemistry Solubility Discussion

 

Instructions

Intermolecular forces play fundamental roles that affect substances’ properties including:

  • Vapor pressure
  • Capillary action
  • Boiling point/Melting point
  • Viscosity
  • Solubility

Examine a specific case that interests you where intermolecular forces play an important role. Some ideas include:

  • Solubility: Like-dissolves-like
    • Why are some vitamins like vitamin A toxic at high concentrations, but others like vitamin C are not?
    • How do soaps and alcohols act as antimicrobials?
    • How do soaps make grease become soluble?
  • Capillary Action
    • How do plants use capillary action to move water into their stems and leaves?
  • Hydrogen bonding
    • How do hydrogen bonds play a role in DNA structure?
    • How do hydrogen bonds play a role in drugs binding to their targets. (You can return to your previous discussion on molecular shapes and examine drug-target binding. The molecular modeling program that you used draws dashed lines to represent hydrogen bonds between the drug and its target).
  • Boiling point/melting point
    • How do London-dispersion forces affect melting points of triglycerides, causing some to be fats while others are oils.
    • What is the difference between old-fashioned peanut butter and hydrogenated peanut butter and why is hydrogenated peanut butter solid at room temperature?
  • Consider the intermolecular forces that must occur when a virus infects a cell. Here’s a video simulation. This might require some advance knowledge of biology, but still, you can see there are a lot of interactions that must occur.

Grading

  • Clearly indicates the topic
  • Explains how the topic is related to and is affected by intermolecular forces
  • Provides something interesting or unexpected or explains why the topic was chosen
  • Provides 2 references