Tuesday, November 5, 2013

Information and Facts




Potassium Nitrate

  • Names of Compound:
    • Potassium Nitrate
    • Collo-Bo
    • Dexol Stump Remover
    • Niter
    • Nitre
    • Nitric Acid Potassium Salt (1:1)
    • Nitric Acid, Potassium Salt
    • Potash Nitrate
    • Saltpeter
Structural Formula

  • Chemical Formula: KNO3
  • Molar Mass: 101.10 g/mol
  • Physical Properties:
    • colorless crystals
    • dissolves in water and remains stable
    • melting point = 334 degrees centigrade
    • boiling point = 400 degrees centigrade
    • freezing point = 1.86 degrees c/m
    • density = 2.11 g/cm3
  • Chemical Properties:
    • Stability under ordinary conditions of use and storage
    • May explode when mixed with other substance
    • Harmful or fatal to humans if it is shallowed
    • It could also cause fires
    • It is an ionic bond 

Historical Background
  • Its origin is from Arabic and Latin
  • It is naturally made
  • The one who discovered this compound was Sir Humpchy Davy in the year 1807
  • The uses and importance of it is:
      • Acts as a fertilizer
      • Preserving food
      • Explosives
      • Cigarette production
      • Metal Work
      • Production of glass

Explanation/Demonstration Ionic Bonding and Covalent Bonding

  • The compounds that are composed in ionic bonding and Covalent bonding are:
    • Nonmetal + Metals - Ionic Bonds
    • Metal + Polyatomic ions - Ionic Bonds
    • Nonmetal + Nonmetal - Covalent Bonds
    • Hydrogen + Nonmetal - Covalent Bonds
  • Ionic bonding is when there is a metals(Cations) and nonmetals(Anions) combine to make a compound
  • Covalent Bonding is when nonmetals and nonmetals combine together
    • The reason(s) for element bonding is (are):
      • to complete the octet rule; meaning to have eight valence electrons on the outer most layer

      Facts About Potassium

    Bizarre Fact About The Compound
    • Potassium Nitrate could start up fire
    • It's harmful and it could be fatal is swallowed
    • It could be used as a fertilizer
    • It is used to preserve food


    Bibliography
    Resources

    • http://www.britannica.com/EBchecked/topic/472373/potassium-K/5886/Principal-compounds-and-reactions-with-other-elements
    • http://www.cameochemicals.noaa.gov/chemical/1370
    • http://www.ehow.com/list_7172642_properties-potassium-nitrate.html
    • Science journal pgs. 47, 36, 34
    • http://chemwiki.ucdavis.edu/Organic_Chemistry/Fundamentals/Resonance_Forms


    Extra
    Resonance

    Carbonate Ion Structure

    • Resonance structures are structures that occur when it is possible to draw two or more valid electron dot structures that have the same number of electron pairs


    • Explanation of resonance:
      • It has a resonance structure because it has two or more electron structures drawn
      • It is a better depiction of a lewis dot structure because they clearly show bonding in molecules
      • Two resonance structures are not similar in position of multiple bonds and non bonding electrons
      • The placement of atoms and single bonds always stay the same.


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