amphiprotic (1 Viewer)

[Steven12]

i know an amphiprotice substance is something that reacts with acid and base. but i put that for amphiprotic, are they the same ?
also, is this equation correct cos that is what i wrote

H2Po4- +H3O+ -> H3Po4 +h20

H2Po4 + Oh- -> HPO4-2 + h2o

 

[sub]

calm down....if i read it correctly ur ok...
did u spell that first one right?

 

[Steven12]

yea, its like my trial when they asked what buffer is and i put the definition of a buffer solution.

also for they asked for what corrosion, that got me cos i didnt exactly know how to phrase it

 

[The Bograt]

Is it ok if I didn't use H3O+ but used H+ instead?
I think I messed up the definition:
An amphiprotic substance can react with both an acid and a base - that's not right is it

 

[sub]

yeah should be fine...amphiprotic - acts as a proton donor and acceptor...u should be right. bronstead-lowry definition

 

[tina_goes_doo]

I used H2PO4 - + H2O -----> H3PO4 + OH-
and H2PO4 - + H2O -----> HPO4 2- + H3O+

Same thing right?

 

[sub]

yeah, but using the h3o+ and oh- are easier for me

 

[bobbie212]

i put they both reacted with water and did it that way. But for when it donated a proton, i made at a diprotic acid, so H2PO4- + 2H20--> PO4- + 2H3O is that wrong?

 

[xeriphic]

I used H2PO4 - + H2O -----> H3PO4 + OH-
and H2PO4 - + H2O -----> HPO4 2- + H3O+

Same thing right?

same ^ lol and same with the definition too proton donor, proton acceptor as both

 

[sub]

you have to explicitly state that it is different in each case, otherwise u MAY NOT get the marks cos in each case what happens is different...if u did u should be fine

 

[RaineeDays]

I used H2PO4 - + H2O -----> H3PO4 + OH-
and H2PO4 - + H2O -----> HPO4 2- + H3O+

Same thing right?

god i hope so..i did the same thing :worried:

 

[scruffy012]

hehe i wrote for the h3o one h20 + 1/2H2 i totall forgot he h3o

hehe

scruffy

 

[tina_goes_doo]

What do you mean by that? The equations? It just asked us to "write" them.

That was for sub's post btw

 

[sub]

im pretty sure it sed to write the equations for the HPO4 thingy being amphiprotic...
it was for bobbie's post...and i think i misread the second part of the msg. if she (no offense if ur not a chick) just sed i wrote they both reacted with water...u have to say that its different... ie one way, u get the proton donation, the other u get proton acceptance by the HPO4 ion.

my bad. sry.

 

[bobbie212]

was the H2PO4 diprotic as well as amphiprotic?

 

[tina_goes_doo]

Oh sorry sub. I was getting confused

 

[Steven12]

hey, i remember that panda, its Rama's dad, he felled into a cesspool and turned into a panda. Man its been ages since i saw that......

well, i just hope i get that one mark for definition of amphiprotic cos i put the definition of an amphiprotic substance.....

 

[tina_goes_doo]

It's Genma. Man isn't the panda cool...

 

[lucyinthehole]

your panda reminds me of "spirited away". that was such a great film

 

[CharlieB]

you have to use H3O and OH not just 2 H2Os because amphiprotic nature occurs under diff conditions... at least thats what our teacher told us