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Introduction To Acids & Bases
Introduction To Acids & Bases
Introduction To Acids & Bases
Introduction To Acids & Bases
Introduction To Acids & Bases
Introduction To Acids & Bases
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Introduction To Acids & Bases

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Transcript

  • 1.  
  • 2.
    • Hydrogen-containing molecular compound whose molecules yield H + ions when dissolved in water
      • When dissolved in water, they have a sour taste
      • Acid comes from the Latin acidus which means sour
      • pH>7
      • corrosive
        • Acetic acid gives vinegar it’s sour taste
        • Ascorbic acid (Vitamin C) common ingredient in food for sour taste
  • 3.
    • Strong acids transfer almost 100% of their hydrogens to water
        • H 2 SO 4 (sulfuric acid)= H + (hydrogen) and SO 4 - (sulfate ions)
        • HCl (hydrochloric acid)=H + (hydrogen) and Cl - (chloride ions)
    • Weak acids transfer less than 5% of their hydrogens to water
        • HC 2 H 3 O 2 =(acetic acid)
        • H 2 CO 3 =(carbonic acid)
  • 4.
    • Hydrogen-containing molecular compound whose molecules yield OH - ions when dissolved in water
      • When dissolved in water, they have a bitter taste
      • Base solutions feel slippery or soapy to the touch.
      • Corrosive
      • pH>7
        • Sodium hydroxide is also known as lye and is very caustic to the touch
  • 5.
    • Strong acids transfer almost 100% of their hydroxyls to water
        • NaOH (sodium hydroxide)  Na + + OH -
        • LiOH (lithium hydroxide)  Li + + OH -
    • Weak bases transfer less than 5% of their hydroxyls to water
        • Only one is fairly common
        • NH3 (aqueous ammonia)  NH 4 + +OH -
  • 6.
    • More on acids and bases

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