After 11.2 g of carbon reacts with oxygen originally occupying 21.2 litres at `18^@C` and 750 mmHg, the cooled gases are passed through 3 litres of 2.50 M NaOH solution. Determine the concentration of NaOH remaining in solution which is

Explanation

To solve the problem, we will follow these steps:

### Step 1: Determine the moles of carbon reacted
First, we need to calculate the number of moles of carbon (C) that reacted. The molar mass of carbon is approximately 12 g/mol.

\[ \text{Moles of carbon} = \frac{\text{mass of carbon}}{\text{molar mass of carbon}} = \frac{11.2 \, \text{g}}{12 \, \text{g/mol}} = 0.9333 \, \text{mol} \]
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