Starting from boric acid prepare triEthyl borate.

Explanation

To prepare triethyl borate starting from boric acid (H₃BO₃), we can follow these steps:

### Step 1: Start with Boric Acid
We begin with boric acid, which has the formula H₃BO₃.

### Step 2: Convert Borax to Boric Acid (if necessary)
If we were starting from borax (sodium tetraborate, Na₂B₄O₇), we would first convert it to boric acid. The reaction is as follows:
\[ \text{Na}_2\text{B}_4\text{O}_7 + \text{H}_2\text{SO}_4 + 5\text{H}_2\text{O} \rightarrow \text{Na}_2\text{SO}_4 + 4\text{H}_3\text{BO}_3 \]
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