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writingreactionsacidbasebuffer - Weak Acid Strong Base KOH...

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Cut to the Chase: Writing Reactions for Acid, Base, and Buffer Problems 1. Buffer problem: weak acid and conjugate base. Begin with weak acid. HF H + + F - 2. A buffer to which a strong acid or base has been added. If a strong acid is added, the base part of the buffer reacts with the acid. If a strong base has been added, the acid part of the buffer reacts. Consider the buffer HF and NaF. Strong Acid HCl added: H + + F - HF Strong Base NaOH added: OH - + HF F - + H 2 O 3. In titration problems, either a strong acid and base are reacted, or a strong acid or base with a weak acid or base are reacted. Strong Acid + Strong Base- HCl and NaOH: H + + OH - H 2 O Strong Acid + Weak Base- NH 3 and HCl: H + + NH 3
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Unformatted text preview: + Weak Acid + Strong Base- KOH + HF: HF + OH-→ F-+ H 2 O 4. pH of a strong acid or base. The reaction is the 100% ionization of the strong acid or base. Strong Base: Sr(OH) 2 → Sr 2+ + 2 OH-Strong Acid: HClO 3 + H 2 O H 3 O + + ClO 3-5. pH of a weak acid. The reaction is the equilibrium ionization of the weak acid. CH 3 COOH + H 2 O ↔ CH 3 COO-+ H 3 O + 6. pH of salt solutions. The reaction is the hydrolysis(water) reaction with the ion derived form a weak acid or base. The salt NaF: F-+ HOH ↔ HF + OH-CuCl: Cu + + HOH ↔ CuOH + H + These are just the result of writing the net ionic equation for the reaction of a slat and water....
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