Determine the pH during the titration of 14.6 mL of 0.170 M nitric acid by 0.119 M potassium hydroxide at the following points: (1) Before the addition of any potassium hydroxide (2) After the addition of 10.4 mL of potassium hydroxide (3) At the equivalence point (4) After adding 25.8 mL of potassium hydroxide

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**Titration of Nitric Acid with Potassium Hydroxide**

**Objective:** Determine the pH during the titration of 14.6 mL of 0.170 M nitric acid by 0.119 M potassium hydroxide at the following points:

1. **Before the addition of any KOH:**
   - Calculate the initial pH of the nitric acid solution.

2. **After the addition of 10.4 mL of KOH:**
   - Determine the pH at this stage, considering the quantity of base added and the neutralization reaction.

3. **At the equivalence point:**
   - Identify the point where the number of moles of nitric acid equals the number of moles of potassium hydroxide and find the resulting pH.

4. **After adding 25.8 mL of KOH:**
   - Evaluate the pH with excess potassium hydroxide in the solution.

This exercise allows students to explore the changes in pH during an acid-base titration and the concept of the equivalence point.
Transcribed Image Text:**Titration of Nitric Acid with Potassium Hydroxide** **Objective:** Determine the pH during the titration of 14.6 mL of 0.170 M nitric acid by 0.119 M potassium hydroxide at the following points: 1. **Before the addition of any KOH:** - Calculate the initial pH of the nitric acid solution. 2. **After the addition of 10.4 mL of KOH:** - Determine the pH at this stage, considering the quantity of base added and the neutralization reaction. 3. **At the equivalence point:** - Identify the point where the number of moles of nitric acid equals the number of moles of potassium hydroxide and find the resulting pH. 4. **After adding 25.8 mL of KOH:** - Evaluate the pH with excess potassium hydroxide in the solution. This exercise allows students to explore the changes in pH during an acid-base titration and the concept of the equivalence point.
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