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Naming and writing formulas of compounds...

by chemzz
Tags: compounds, formulas, naming, writing
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chemzz
#1
Jul25-07, 10:04 AM
P: 18
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....
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
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chemzz
#2
Jul25-07, 10:10 AM
P: 18
here u go....:)
cristo
#3
Jul25-07, 10:42 AM
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cristo's Avatar
P: 8,308
Quote Quote by chemzz View Post
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....
ok...so i got these...
ZnI2 - Zinc Iodide
BrF-Barium Floride
What is Br the symbol for? (It's not barium)
FeSO3- Iron sulphite
CaH2- Calcium hyroxide
No, calcium hydroxide is Ca(OH)2. The formula you are trying to name does not have the oxygen in, and so is calcium hydride.
BaHPO3-Barium hypophosphate
I'm not sure about this one.
CuNO3- Copper Nitrate
correct
AgIO2- Gold(II)Idoxide
Well, Ag is silver. To be honest, I don't know this one either!
SO2- Sulphide
That's not correct. What is CO2? Can you tell from this what SO2 is?

For the formulas i got...
zinc sulphate- ZnSO3
No. You seen to be getting confused with the oxyanions. Compounds ending in SO4 are sulphates; compounds ending in SO3 are sulphites.
barium nitrate-BaNO3
correct
gold(III)sulpahte- AgSO3
The chemical symbol for Gold is Au. Also, I'm sure the question says gold(III) nitrate. What does the III in brackets mean?
barium chloride- BaCl
No, your charges on this compound don't balance. Look at which groups each element is in in the periodic table.
mercurous nitrate- i don't get this one!
I think mercurous means the 1+ ion of mercury.
antimony (V) cloride- AtCl5
At is astatine-- check your periodic table!
ferrous bromide- FeBr
Ferrous means iron(II) ions
calcium carbonate- CaCO3
correct
hydrobromic acid- HBO3
B is no the symbol for bromine. Do you know the formula for hydrochloric acid? If so, can you get from this the formula for hydrobromic acid?


[And, for the record, I'm not a chemist, and haven't taken chemistry for quite a while-- that's why I don't know the answres to some of the questions! Someone who does know them will be along soon, I'm sure!]

mgb_phys
#4
Jul25-07, 11:48 AM
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HW Helper
P: 8,954
Naming and writing formulas of compounds...

This was also posted in the homework thread, this site describes tradiational style inorganic naming.
http://www.ausetute.com.au/namiform.html
Gokul43201
#5
Jul25-07, 03:43 PM
Emeritus
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P: 11,155
Barium nitrate is not BaNO3.

Chemzz, it looks like you're guessing many of these. There's a systematic way to do these that you need to learn first.

See the link in the above post, as well as http://www.ausetute.com.au/wriiform.html
cristo
#6
Jul25-07, 03:45 PM
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Quote Quote by Gokul43201 View Post
Barium nitrate is not BaNO3.
Sorry, it's not-- my bad
akeber0
#7
Jul25-07, 03:56 PM
P: 11
Br stands for bromine and B stands for boron
symbolipoint
#8
Jul25-07, 04:48 PM
HW Helper
PF Gold
P: 2,797
Barium biphosphite
dee.
#9
Nov9-08, 04:09 PM
P: 2
hi. I'm a student that doesn't understand how to write the formulas to compounds. if you could help me, please do. thanks.


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