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

1. Convert mL to Liters

* There are 1000 mL in 1 L.

* 597 mL * (1 L / 1000 mL) = 0.597 L

2. Calculate Molarity

* Molarity (M) is defined as moles of solute per liter of solution.

* Molarity = (moles of solute) / (liters of solution)

* Molarity = (0.18 moles ZnCl₂) / (0.597 L)

* Molarity ≈ 0.30 M

Therefore, the molarity of the solution is approximately 0.30 M.