• Support PF! Buy your school textbooks, materials and every day products Here!

Amphoteric Compounds

  • Thread starter Seinfeld4
  • Start date
  • #1
21
0

Homework Statement



The Ka of H2PO4 is 6.3 * 10^-8. The Ka of HS is 1.3 * 10^-13. Write a formula for the reaction of these substances and explain your results. Both are amphoteric.

The Attempt at a Solution



The formula is:

H2PO4 + HS <--> HPO4 + H2S

I figured that the H2PO4 will act more like the acid in this particular situation because it has a higher value of Ka. So, H2PO4 will donate a proton while HS will recieve a proton.

Is this the correct train of thought?

Thanks.
 

Answers and Replies

  • #2
Borek
Mentor
28,360
2,753
Is this the correct train of thought?
Yes. Just don't ignore charges - use [noparse]-[/noparse] to get -.
 

Related Threads on Amphoteric Compounds

  • Last Post
Replies
3
Views
14K
  • Last Post
Replies
5
Views
69K
  • Last Post
Replies
6
Views
13K
Replies
5
Views
15K
Replies
1
Views
7K
  • Last Post
Replies
3
Views
8K
  • Last Post
2
Replies
29
Views
2K
  • Last Post
Replies
6
Views
5K
  • Last Post
Replies
1
Views
225
  • Last Post
Replies
1
Views
6K
Top