Determine the pH during the titration of 26.8 mL of 0.447 M hypochlorous acid (K, = 3.5×10-8) by 0.467 M NaOH at the following points. (a) Before the addition of any NaOH 3.90 (b) After the addition of 6.20 mL of NaOH 6.95 (c) At the half-equivalence point (the titration midpoint) 6.90 (d) At the equivalence point 10.41 (e) After the addition of 38.5 mL of NaOH 12.96 An error has been detected in your answer. Check for typos, miscalculations etc before submitting vour answer

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Chapter1: Chemical Foundations
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**Titration of Hypochlorous Acid with Sodium Hydroxide**

In this exercise, we are determining the pH during the titration of 26.8 mL of 0.447 M hypochlorous acid (HOCl) with a sodium hydroxide (NaOH) solution of 0.467 M concentration. The acid dissociation constant (Kₐ) for hypochlorous acid is 3.5×10⁻⁸.

**pH Measurements at Various Points:**

(a) **Before the addition of any NaOH:**
- pH = 3.90

(b) **After the addition of 6.20 mL of NaOH:**
- pH = 6.95

(c) **At the half-equivalence point (the titration midpoint):**
- pH = 6.90

(d) **At the equivalence point:**
- pH = 10.41

(e) **After the addition of 38.5 mL of NaOH:**
- pH = 12.96

*Note:* An error message suggests checking for typos or miscalculations in the provided answers before submission. Please verify the calculations to ensure accuracy.
Transcribed Image Text:**Titration of Hypochlorous Acid with Sodium Hydroxide** In this exercise, we are determining the pH during the titration of 26.8 mL of 0.447 M hypochlorous acid (HOCl) with a sodium hydroxide (NaOH) solution of 0.467 M concentration. The acid dissociation constant (Kₐ) for hypochlorous acid is 3.5×10⁻⁸. **pH Measurements at Various Points:** (a) **Before the addition of any NaOH:** - pH = 3.90 (b) **After the addition of 6.20 mL of NaOH:** - pH = 6.95 (c) **At the half-equivalence point (the titration midpoint):** - pH = 6.90 (d) **At the equivalence point:** - pH = 10.41 (e) **After the addition of 38.5 mL of NaOH:** - pH = 12.96 *Note:* An error message suggests checking for typos or miscalculations in the provided answers before submission. Please verify the calculations to ensure accuracy.
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