sulphurous acid (1 Viewer)

[clever angel]

wat wud be the equation when NaOH reacted with sulphurous acid , will SO2 be released

 

[poodoorfan]

what is sulphurous acid???? cos i've never heard of anything like that in my life, if it's in the exam i'll have no idea what to do, isn't it just sulphuric acid?

 

[wanton-wonton]

H2SO3 is sulfurous acid.

As for the reaction, I don't know...I don't think it's required to know.

 

[serge]

wat wud be the equation when NaOH reacted with sulphurous acid , will SO2 be released

when it dissociates it'll become 2H+ and SO3(2-)
[sorry bout the lack of subscript]
for SO3(2-) to turn into SO2 gas many things must happen

I'll take a punt and say no,

 

[Dreamerish*~]

Acid + Base → Salt + Water

Since NaOH is a base and sulfurous acid is an acid, how in the world can they produce SO₂ gas?

 

[Haku]

when it dissociates it'll become 2H+ and SO3(2-)
[sorry bout the lack of subscript]
for SO3(2-) to turn into SO2 gas many things must happen

I'll take a punt and say no,

there is no 2H+

the first H dissociate cause its a kinda strong acid, but the second H does not, and its just HSO3(-). and thats amphiprotic, but slightly acidic.

so prob have to say it doesn;t generate SO2 gas.

 

[serge]

there is no 2H+

the first H dissociate cause its a kinda strong acid, but the second H does not, and its just HSO3(-). and thats amphiprotic, but slightly acidic.

so prob have to say it doesn;t generate SO2 gas.

if there are more OH-s the HSO3 can still react with them
to form water and S03(-2)?

 

[Haku]

i was refering to in solution form. cause its a weak acid one some of the first H ions ionise while almost all of the 2nd H ion stay intact.

But if in neutralisation the first H ion will neutralise while the HSO3- is amphiprotic so it will move to produce more acid. but thats the same for all acids

 

[serge]

i was refering to in solution form. cause its a weak acid one some of the first H ions ionise while almost all of the 2nd H ion stay intact.

But if in neutralisation the first H ion will neutralise while the HSO3- is amphiprotic so it will move to produce more acid. but thats the same for all acids

yeh, i understand now