Calculate the pH of an aqueous solution of `1.0M` ammonium formate assuming complete dissociation. `(pK_(a)` of formic acid `= 3.8 and pK_(b)` of ammonia `= 4.8`)

Explanation

To calculate the pH of a 1.0 M aqueous solution of ammonium formate (NH4HCOO), we will use the relationship between the pKa of the weak acid (formic acid) and the pKb of the weak base (ammonia). Here’s the step-by-step solution:

### Step 1: Identify the relevant constants
We are given:
- pKa of formic acid (HCOOH) = 3.8
- pKb of ammonia (NH3) = 4.8
- pKw = 14 (at 25°C)

...