1 / 18

PROPERTIES OF WATER

PROPERTIES OF WATER. Structure of Water. Shape 105 o angle Polar molecule – negative and positive pole. Hydrogen Bonding. Hydrogen Bonds Occurs with polar molecules Between hydrogen and an electronegative atom in a nearby molecule (in this case: water). Surface Tension.

jayden
Download Presentation

PROPERTIES OF WATER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. PROPERTIES OF WATER

  2. Structure of Water • Shape 105o angle • Polar molecule – negative and positive pole

  3. Hydrogen Bonding • Hydrogen Bonds • Occurs with polar molecules • Between hydrogen and an electronegative atom in a nearby molecule (in this case: water)

  4. Surface Tension • Cohesion: another name for attractive forces of molecules to each other • each molecule of water is attracted in all directions (perhaps as many as four other water molecules) through hydrogen bonding • there is an inward force or pull which minimizes the surface area of any liquid. This causes surface tension

  5. Surface Tension • Adhesion: ability of water molecules to be attracted to solid surfaces

  6. Meniscus • is a curve in the surface of a liquid and is produced in response to the surface of the container or another object. • Surface Tension acts on concave menisci to pull the liquid up

  7. Capillary Action • Adhesion of water molecules to the sides of a glass capillary tube pulls the water molecules up the sides of the tube. • The cohesion of the water molecules to each other, pulls the rest along

  8. Hydrate • Compounds formed by the union of water with some other substance • Typically crystallized salts • Example: CuSO4 · 5H2O

  9. Anhydrous • A substance that is not in contact with water • Water has been removed When the water from MgSO4·7H2O is driven off it becomes MgSO4, an anhydrous compound.

  10. Viscosity • property of a fluid that offers resistance to flow • Something that is viscous has a cohesive (molecules attracted to each other) and sticky fluid consistency • Example: oil

  11. Surface Tension/Surfactant Demo

More Related