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Homework Help: Naming compounds

  1. Jul 25, 2007 #1
    Name the following :ZnI2, BrF, FeSO3, CaH2, BaHPO3,CuNO3, AgIO, SO2

    write the correct formula of these: zinc sulphate, barium nitrate, gold(III)nitrate, barium chloride, mercurous nitrate, antimony(V)cloride, ferrous bromide, calcium carbonate and hydrobromic acid.

    i have attempted them as aswell....
    Last edited: Jul 25, 2007
  2. jcsd
  3. Jul 25, 2007 #2
    attempt? you need to show some work b4 help is given.
  4. Jul 25, 2007 #3
    ok...so i got these...
    ZnI2 - Zinc Iodide
    BrF-Barium Floride
    FeSO3- Iron sulphite
    CaH2- Calcium hyroxide
    BaHPO3-Barium hypophosphate
    CuNO3- Copper Nitrate
    AgIO2- Gold(II)Idoxide
    SO2- Sulphide
  5. Jul 25, 2007 #4
    For the formulas i got...
    zinc sulphate- ZnSO3
    barium nitrate-BaNO3
    gold(III)sulpahte- AgSO3
    barium chloride- BaCl
    mercurous nitrate- i don't get this one!
    antimony (V) cloride- AtCl5
    ferrous bromide- FeBr
    calcium carbonate- CaCO3
    hydrobromic acid- HBO3
  6. Jul 25, 2007 #5
    now do i get my answer?
  7. Jul 25, 2007 #6


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    Where's the oxygen?

    A good guide to naming is http://www.ausetute.com.au/namiform.html
    The whole point of systematic naming is so you don't have to remember lots of fake latin endings and just write the oxidation state in the name. Looks lke inorganic chemistry has some catching up to do.
  8. Jul 25, 2007 #7


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    Is 'Br' barium?

    Hydroxide is the functional group 'OH'.

    'Hypo' refers to the lowest of the oxidation states for oxyanions. Do you know the oxidation state for phosphorous in phospate, phosphite (phosphonate) and hypophosphite?

    IO2- is not 'idoxide'. It is the lowest oxidation state (for iodine) of the iodine oxyanion series. Sulphide is S-2...

    Here is some information from an old textbook of mine ("Inorganic Chemistry", James Huheey, 3rd ed. 1983.)

    An example of the nomenclature of chlorine-containing anions is:

    Cl- chloride (Cl-1)
    ClO- hypochlorite (Cl-1, the lowest oxidation number of the oxyanions of Cl)
    ClO2- chlorite (Cl+3)
    ClO3- chlorate (Cl+5)
    ClO4- perchlorate (Cl+7, the highest oxidation number of the oxyanions of Cl)

    The suffix -ous and -ic are used to denote the lowest and highest oxidation state respectively, as in cuprous (Cu+1) and cupric (Cu+2).

    Any help?
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