basic question help (1 Viewer)

Timothy.Siu

Prophet 9
Joined
Aug 6, 2008
Messages
3,449
Location
Sydney
Gender
Male
HSC
2009
i was just doing a question,
"The reactions of oxides with water is hydrolysis. Write conventional equations for the hydrolysis of these:"

i got stuck on one of them...
it was d)phosphuros pentoxide,

and i got P205 + H2O ---> 2HPO3
but the answers had sometyihng else
 
Last edited:

Trebla

Administrator
Administrator
Joined
Feb 16, 2005
Messages
8,113
Gender
Male
HSC
2006
Well first of all, PO4 or PO3 has a valency of -3, so the acid should be triprotic.

I'm not completely sure, but I think it's:
P2O5 (s) + 3H2O (l) --> 2H3PO4 (aq.)
 

Timothy.Siu

Prophet 9
Joined
Aug 6, 2008
Messages
3,449
Location
Sydney
Gender
Male
HSC
2009
Trebla said:
Well first of all, PO4 or PO3 has a valency of -3, so the acid should be triprotic.

I'm not completely sure, but I think it's:
P2O5 (s) + 3H2O (l) --> 2H3PO4 (aq.)
yeah okay thanks, lol,
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top