0.1 mol of a hydroxyl compound reacts with 62.5 g of `PCl_(5)` (mol. Wt. 208.5) Determine the number of -OH groups

Explanation

To determine the number of -OH groups in the hydroxyl compound, we can follow these steps:

### Step 1: Calculate the number of moles of PCl5
We know the mass of PCl5 is given as 62.5 g, and the molar mass of PCl5 is 208.5 g/mol.

Using the formula:
\[
\text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}}
...