Answer: Option (a) is the correct answer.
Explanation:
Molarity is defined as the number of moles present in a liter of solution.
Mathematically, Molarity = [tex]\frac{\text{no. of moles}}{volume}[/tex]
Since, it is given that molarity is 4.0 molar or 4.0 m/L and no. of moles is 12 moles.
Therefore, calculate volume as follows.
Molarity = [tex]\frac{\text{no. of moles}}{volume}[/tex]
4.0 m/L = [tex]\frac{12 moles}{volume}[/tex]
volume = 3 L
Hence, we can conclude that volume of the given solution is 3 liters.
