What will be the resultant pH when 200 ml of an aqueous solution of HCl ( pH = 2.0) is mixed with 300 ml of an aqueous solution of NaOH ( pH = 12.0 ) ?

Explanation

To find the resultant pH when 200 ml of an aqueous solution of HCl (pH = 2.0) is mixed with 300 ml of an aqueous solution of NaOH (pH = 12.0), we can follow these steps:

### Step 1: Calculate the concentration of H⁺ ions from HCl
Given:
- pH of HCl = 2.0

Using the formula:
\[ \text{pH} = -\log[\text{H}^+] \]
...