Join now for JEE/NEET and also prepare for Boards Join now for JEE/NEET and also prepare for Boards. Register Now
Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
Assuming the complete dissociation of HCl and the lead salt ,calculate how much HCl is to be added to a 0.001 M lead salt solution to just prevent precipitation when saturated with H 2 S?The concentration of H 2 S in its saturated solution is 0.1 M. K aH2S =1.1×10 -23 ;K spPbS =3.4×10 -28 . Assuming the complete dissociation of HCl and the lead salt ,calculate how much HCl is to be added to a 0.001 M lead salt solution to just prevent precipitation when saturated with H2S?The concentration of H2S in its saturated solution is 0.1 M. KaH2S=1.1×10-23;KspPbS=3.4×10-28.
Assuming the complete dissociation of HCl and the lead salt ,calculate how much HCl is to be added to a 0.001 M lead salt solution to just prevent precipitation when saturated with H2S?The concentration of H2S in its saturated solution is 0.1 M. KaH2S=1.1×10-23;KspPbS=3.4×10-28.
Hi Ankur, [Pb+2] [S2-] = Ksp = 3.4 * 10^-28 [PbS] = [Pb+2] = 0.001 (saturated) [S2-]= 3.4 * 10^-25 Ka = 1.1 * 10^-23 = [H+]2[S-2]/[H2S] [H+]2 = 1.1/3.4 * 10^2 * 0.1 [H+] = 1.8 since due to the very small Ka value of H2S the H+ furnished by it is negligible. Therefore the 1.8 M HCl is to be added.
Hi Ankur,
[Pb+2] [S2-] = Ksp = 3.4 * 10^-28
[PbS] = [Pb+2] = 0.001 (saturated)
[S2-]= 3.4 * 10^-25
Ka = 1.1 * 10^-23 = [H+]2[S-2]/[H2S]
[H+]2 = 1.1/3.4 * 10^2 * 0.1
[H+] = 1.8
since due to the very small Ka value of H2S the H+ furnished by it is negligible.
Therefore the 1.8 M HCl is to be added.
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -