<ul><li>Hydrogen-containing molecular compound whose molecules yield H +  ions when dissolved in water </li></ul><ul><ul><...
<ul><li>Strong acids transfer almost 100% of their hydrogens to water </li></ul><ul><ul><ul><li>H 2 SO 4  (sulfuric acid)=...
<ul><li>Hydrogen-containing molecular compound whose molecules yield OH -  ions when dissolved in water </li></ul><ul><ul>...
<ul><li>Strong acids transfer almost 100% of their hydroxyls to water </li></ul><ul><ul><ul><li>NaOH  (sodium hydroxide) ...
<ul><li>More on  acids and bases </li></ul>
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Introduction To Acids & Bases

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Introduction To Acids & Bases

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