What indicator should be used for the titration of `1.0M KBO_(2)` with `1.10M HCl`?

Explanation

To determine the appropriate indicator for the titration of 1.0 M KBO₂ (a weak base) with 1.10 M HCl (a strong acid), we can follow these steps:

### Step 1: Identify the nature of the reactants
- KBO₂ is a weak base, and HCl is a strong acid. In a titration involving a weak base and a strong acid, the pH at the equivalence point will be less than 7.

### Step 2: Determine the pH at the equivalence point
- For the titration of a weak base with a strong acid, the equivalence point typically occurs at a pH that is acidic (below 7). The exact pH can vary but is generally around 5-6.

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