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23 June, 23:56

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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  1. 24 June, 01:51
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    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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