0.2 g of a monobasic acid gave 0.5 g of `CO_2` and 0.089 g of `H_2 O`. 0.122 g of the same acid requires 10 mL of 0.1 N NaOH for complete neutralisation. Determine the molecular formula of the compound.

Explanation

To determine the molecular formula of the monobasic acid given the information, we can follow these steps:

### Step 1: Calculate the moles of CO2 and H2O produced
Given:
- Mass of CO2 = 0.5 g
- Mass of H2O = 0.089 g

**Molar Masses:**
...