Consider the weak acid HCO₂ whose pka 10.32, which form will predominate when the pH of the solution I 8.5? B options= - Conjugate acid neither both

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**Title: Understanding the Predominant Form of Weak Acids**

**Text:**

Consider the weak acid HCO₃⁻, whose pKa is 10.39. Which form will predominate when the pH of the solution is 8.5?

**Options:**
- Conjugate
- Acid
- Neither
- Both

**Explanation:**

To determine which form, either the acid or its conjugate base, predominates in a solution, compare the pH of the solution to the pKa of the acid. If the pH is lower than the pKa, the acidic form predominates. Conversely, if the pH is higher, the conjugate base predominates. In this case, since the pH (8.5) is less than the pKa (10.39), the acidic form of HCO₃⁻ will predominate.
Transcribed Image Text:**Title: Understanding the Predominant Form of Weak Acids** **Text:** Consider the weak acid HCO₃⁻, whose pKa is 10.39. Which form will predominate when the pH of the solution is 8.5? **Options:** - Conjugate - Acid - Neither - Both **Explanation:** To determine which form, either the acid or its conjugate base, predominates in a solution, compare the pH of the solution to the pKa of the acid. If the pH is lower than the pKa, the acidic form predominates. Conversely, if the pH is higher, the conjugate base predominates. In this case, since the pH (8.5) is less than the pKa (10.39), the acidic form of HCO₃⁻ will predominate.
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