× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
New Topic  
LimitedFury LimitedFury
wrote...
Posts: 6
Rep: 0 0
11 years ago
Calculate the acid dissociation constant of a weak monoprotic acid if a 0.5M solution of this acid gives a hydrogen-ion concentration of 0.000 1M?  
 Hint: Monoprotic means containing one proton.Neutral Face

Can someone please help me with this?? I cannot get the answer!!!
10 points for best answer!
Read 4647 times
2 Replies

Related Topics

Replies
wrote...
11 years ago
idk
wrote...
11 years ago
HA <=> H+ + A-
start
0.5
change
-x .. . . .+x .. . . +x


x = [H+]= [A-]= 0.0001 M

Ka = [H+][A-]/ [HA] = 0.0001 x 0.0001 / 0.5 - 0.0001 =2 x 10^-8
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1256 People Browsing
Related Images
  
 275
  
 198
  
 267
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 431