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

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Answer:

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

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

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