Question

For which of the following is the van't Hoff factor 2, assuming complete dissociation?a)Calcium phosphateb)Aluminum chloridec)Calcium chlorided)Sodium chloride

Answer 1

Van't Hoff factor is 2, in the sodium chloride

Step-by-step explanation:

Let's raise the dissociations

• Ca₃(PO₄)₂ → 3Ca²⁺ + 2PO₄⁻³

We have 5 moles of ions

• AlCl₃ → Al³⁺ + 3Cl⁻

We have 4 moles of ions

• CaCl₂ → Ca²⁺ + 2Cl⁻

We have 3 moles of ions

• NaCl → Na⁺ + Cl⁻

We have 2 moles of ions