Step 1: Use the formula for number of moles
\[
\text{Number of moles} = \frac{\text{Given mass}}{\text{Molar mass}}
\]
Given:
- Mass of \(CO_2 = 44\, \text{g}\)
- Molar mass of \(CO_2 = 44\, \text{g/mol}\)
\[
\text{Moles} = \frac{44}{44} = 1 \, \text{mol}
\]
Answer: Therefore, the number of moles in \(44\, \text{g}\) of \(CO_2\) is 1 mol. So, the correct answer is option (1).