1. Understand the Formula

* ZnCl₂ represents zinc chloride. The subscript "2" indicates that there are two chloride ions (Cl⁻) for every one zinc ion (Zn²⁺).

2. Mole Ratio

* The formula tells us the mole ratio: 1 mole of ZnCl₂ contains 2 moles of Cl⁻.

3. Calculation

* Since we have 3.12 moles of ZnCl₂, we can use the mole ratio to find the moles of chloride ions:

3.12 moles ZnCl₂ * (2 moles Cl⁻ / 1 mole ZnCl₂) = 6.24 moles Cl⁻

Therefore, there are 6.24 moles of chloride ions in 3.12 moles of ZnCl₂.