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ligand q

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Kopite:

--- Quote from: "ninwa" ---
--- Quote from: "Kopite" ---
yeah just the complex ion, so what would the overall molecule look like with the so4??

also got another question

write the balanced full equation for

solid sodium oxide reacting with dilute sulfuric acid

the sodium goes from NA20====> NaS04

y doesn't the oxidation state change?? i thought NA2 was supposed to act as a base, and accept protons???
--- End quote ---


Don't know. They won't ask you to draw a complex ion as well as the other ion together. Well I hope not anyway otherwise I'm screwed :P

Sodium oxide is a basic oxide. Thus when it reacts with an acid, it forms a salt and water.

Na2O + H2SO4 ---> Na2SO4 + H2O
--- End quote ---


ok thanks....yeah i probably should have remembered that from unit 3 eh??? are there any others of those general equation writing rule things i should have remembered???

ninwa:

--- Quote from: "Kopite" ---
ok thanks....yeah i probably should have remembered that from unit 3 eh??? are there any others of those general equation writing rule things i should have remembered???
--- End quote ---


Umm .... you mean like:

acid + base => water + salt

acid + metal carbonate => salt + water + carbon dioxide? (btw you probably won't need this one)

principe:
Hmm I'm not sure but I did a similar sort of question. But it had something to do with ligands having a lone electron pair or something, I'm not sure. Maybe one of the Chem mods can enlighten us. Complex ions are one of my weakest areas.

Kopite:

--- Quote from: "ninwa" ---
--- Quote from: "Kopite" ---
ok thanks....yeah i probably should have remembered that from unit 3 eh??? are there any others of those general equation writing rule things i should have remembered???
--- End quote ---


Umm .... you mean like:

acid + base => water + salt

acid + metal carbonate => salt + water + carbon dioxide? (btw you probably won't need this one)
--- End quote ---


yeah those are the ones...do i need to know anymore???

and one more question lol

will AgNO3 and SnCl2 react to an appreciable extent??? a NEAP exam says so.....

thanks lol

ninwa:

--- Quote from: "Kopite" ---
yeah those are the ones...do i need to know anymore???

and one more question lol

will AgNO3 and SnCl2 react to an appreciable extent??? a NEAP exam says so.....

thanks lol
--- End quote ---


lol ... I guess just know acid + base, acid + water, base + water

I'm assuming AgNO3 and SnCl2 are aqueous? According to the electrochemical series:

Cl2 ---> 2Cl-
O2 + 4H+ + 4e- ---> 2H2O
Ag+ ---> Ag
Sn2+ ---> Sn

I don't see a spontaneous reaction there .... better ask coblin this one :P


As for the ligands thing - according to my textbook:

"Complex ions may be formed with ligands other than water. Polar molecules, such as ammonia, which contain an non-bonding pair of electrons, are particularly effective as ligands."

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