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Strength of acids

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Strength of acids

  1. 1. S trength of Acids
  2. 2. Acids <ul><li>dissociates in water to form H + ions e.g. HCl </li></ul>HCl Cl -
  3. 3. Strong Acid <ul><ul><li>dissociates fully (100%) in water </li></ul></ul><ul><ul><li>e.g. HCI </li></ul></ul>+
  4. 4. Strong Acid <ul><ul><li>dissociates fully (100%) in water </li></ul></ul><ul><ul><li>When 10 molecules of HCl is dissolved in water, </li></ul></ul><ul><ul><li>all 10 molecules dissociate to form 10 H + ions and 10 Cl - ions. </li></ul></ul>
  5. 5. Weak Acid <ul><li>dissociates partially in water, forms few H + ions </li></ul><ul><li>e.g. HF </li></ul>+
  6. 6. Weak Acid <ul><li>dissociates partially in water, forms few H + ions </li></ul><ul><li>When 10 molecules of HF is dissolved in water, </li></ul><ul><li>only 1 molecule dissociates to form 1 H + ion and 1 F - ion. </li></ul><ul><li>The other 9 molecules do not dissociate and remain as HF molecules. </li></ul>

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