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    Inorganic Chemistry Problem Set

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    1. Write a balanced net ionic equation for the reaction of each of the following compounds with water.
    (a.) Na3PO 4
    (b.) NaHSO4
    (c.) (CH3)3NHCl

    2. The following species are amphiprotic. Write the formulas of the corresponding conjugate acids and bases:
    (a.) HSe-
    (b.) PH3
    (c.) HPO32-

    3. For each of the following nonaqueous reactions, identify the acid and the base.
    (a.) PCl5 + ICl => PCl4+ + ICl2-
    (b.) POCl3 + Cl- => POCl4-
    (c.) Li3N + 2 NH3 => 3 Li+ + 3 NH2-

    4. Will either of the following high temperature gas-phase reactions be feasible? Give your reasoning in each case.
    (a.) CuI2(g) + 2 CuF(g) => CuF2(g) + CuI(g)
    (b.) CoF2(g) + HgBr2(g) => CoBr2(g) + HgF2(g)

    5. Explain the trends in melting point for
    (a.) the Group 2 elements
    (b.) the Group 17 elements
    (c.) the Group 14 elements

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    Solution Preview

    Na3PO4 + H2O = 3 Na+ + HPO42- + OH-
    NaHSO4 + H2O = Na+ + H3O+ + SO42-
    (CH3)3NHCl = (CH3)3NH+ + Cl-

    conjugate acid conjugate base
    a H2Se Se2-
    b PH4+ PH2-
    c H2PO3- PO33-

    acid base
    a ICl PCl5
    b POCl3 Cl-
    c NH3 ...

    Solution Summary

    250 words.