Q)
(chatquestion)...3414
Example 8. Calculate the S ion concentration in
saturated solution (0.1 M) of H,S whose pH was adjusted to2 by
the addition of HCI. (K, =1.1×10 )
%3D
2H * +S2-
[H*]° [s? ]
H2S
Solution:
Ka
%3D
[H,S]
[S²-]=K«[H,S]
or
[H ]?
[H*] =1x10-2 M
H2S is a weak electrolyte, So, [H2S] 0.1 M
So,
pH = 2;
...
