Here's how to calculate the molarity of the sodium chloride solution:

1. Convert cm³ to liters:

* 1 cm³ = 0.001 L

* 250 cm³ = 250 * 0.001 L = 0.25 L

2. Use the molarity formula:

* Molarity (M) = Moles of solute / Volume of solution (in liters)

3. Plug in the values:

* M = 2 moles / 0.25 L

* M = 8 mol/L

Therefore, the molarity of the sodium chloride solution is 8 M.