Naming Compounds: ZnI2, BrF, FeSO3, CaH2, BaHPO3, CuNO3, AgIO, SO2

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Discussion Overview

The discussion revolves around the naming of various chemical compounds, including ZnI2, BrF, FeSO3, CaH2, BaHPO3, CuNO3, AgIO, and SO2. Participants are attempting to provide correct names and formulas for these compounds, exploring systematic naming conventions in inorganic chemistry.

Discussion Character

  • Homework-related
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant names ZnI2 as Zinc Iodide, while another later questions the naming of BrF as Barium Floride, suggesting confusion over the element symbols.
  • FeSO3 is named Iron sulphite by one participant, but another proposes it should be zinc sulphate, indicating a potential misunderstanding of the compounds.
  • CaH2 is named Calcium hydroxide by one participant, who later points out the absence of oxygen in another's naming attempt.
  • BaHPO3 is referred to as Barium hypophosphate, with a participant discussing the oxidation states of phosphorus in various oxyanions.
  • CuNO3 is named Copper Nitrate, while AgIO2 is incorrectly named Gold(II)Idoxide, prompting a correction regarding the naming of iodine oxyanions.
  • SO2 is referred to as Sulphide, which is challenged by another participant who notes the correct nomenclature for sulfur compounds.
  • Participants reference a guide for systematic naming and discuss the importance of oxidation states in naming conventions.
  • One participant provides historical context and examples from an inorganic chemistry textbook to illustrate naming conventions for anions.

Areas of Agreement / Disagreement

There is no consensus on the correct names and formulas for the compounds discussed. Multiple competing views and corrections are present, indicating ongoing debate and uncertainty among participants.

Contextual Notes

Participants express uncertainty regarding the correct oxidation states and naming conventions, and there are unresolved questions about specific compounds and their systematic names.

Who May Find This Useful

This discussion may be useful for students and individuals interested in inorganic chemistry, particularly those learning about chemical nomenclature and the systematic naming of compounds.

chemzz
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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...
 
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attempt? you need to show some work b4 help is given.
 
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
 
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
 
now do i get my answer?
 
chemzz said:
CaH2- Calcium hyroxide
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.
 
chemzz said:
ok...so i got these...
BrF-Barium Floride

Is 'Br' barium?

chemzz said:
CaH2- Calcium hyroxide

Hydroxide is the functional group 'OH'.

chemzz said:
BaHPO3-Barium hypophosphate

'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?

chemzz said:
AgIO2- Gold(II)Idoxide
SO2- Sulphide

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.)

The names for monoatomic anions shall consist of the name (sometimes abbreviated) of the elements with the termination '-ide'.

It is quite practical to treat oxygen also in the same manner as other ligands but it has long been customary to ignore the name of this element altogether in anions and to indicate its presence and proportion by means of a series of prefixes and sometimes also by the suffix -ite in place of -ate. The termination -ite has been used to denote a lower state of oxidation and may be retained in trivial names in the following cases:...

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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