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Chapter 21 Section 2

Chapter 21 Section 2. Equivalence point - midpoint on vertical portion of a titration curve *when # of equiv of acid = # of equiv of base -page 617 and page 626. -neutralization reaction of strong acid and strong base gives equiv point of pH = 7

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Chapter 21 Section 2

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  1. Chapter 21 Section 2 Equivalence point- midpoint on vertical portion of a titration curve *when # of equiv of acid = # of equiv of base -page 617 and page 626

  2. -neutralization reaction of strong acid and strong base gives equiv point of pH = 7 -neutral. reaction of strong acid and weak base gives an equiv point of pH ≈ 5.3 -neutral. reaction of weak acid and strong base gives an equiv point of pH ≈ 8.7

  3. Differences are due to: salt hydrolysis- the cations and anions of the dissociated salt remove H+ ions from or donate H+ ions to water -usually strong acid-weak base or weak acid-strong base strong acid- 100% ionized in aqueous solution weak acid- partially ionized in aqueous solution

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