exp 12

• Like dissolves like

  What is the familiar generalization regarding solubility?
• Van der Waals forces


  Which of the following forces are involved in the solution process
• Van der Waals forces


  What type of forces enable non-polar liquids to dissolve in each other?
• Due to Van der Waals forces


  Why do non-polar liquids and substances dissolve in polar liquids to some extent?
• Hydrogen bonding


  What type of bonding in water contributes to its unusually high melting and boiling points?
• Ethanol, Methanol


  Which of the following substances exhibit hydrogen bonding similar to water?
• Due to similarity in attraction between OH groups of water and alcohol

  Why are lower alcohols soluble in water?
• Branching decreases solubility


  How does branching in some compounds affect their solubility in water?
• Temporary dipoles


  What do non-polar molecules become when their electrons are temporarily arranged in an unbalanced fashion?
• London dispersion forces


  What is the term for the forces related to the attraction between temporary dipoles in non-polar molecules?
• Polar liquids


  Which type of liquids dissolve in each other due to dipole-dipole interaction?
• Due to similarity in attraction between OH groups of water and alcohol


  Why are lower alcohols soluble in water?
• Branching decreases solubility


  What is the effect of branching in some compounds on their solubility in water?
• Hydrogen bonding


  Which type of bonding in water is responsible for its unique properties?
• Non-polar substances


  Which type of substances dissolve in each other due to the similarity in Van der Waals forces?
• London dispersion forces


  What type of forces between molecules are weaker compared to hydrogen bonds and can be formed with water?