Homework Help: chemistry

Posted by chem question on Tuesday, November 6, 2012 at 12:23am.

For which of the following mixtures will Ag2SO4(s) (Ksp=1.20E^-5)precipitate?
More than one answer can be selected.

a.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.20 M AgNO3(aq)

b.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.30 M AgNO3(aq)

c.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.40 M AgNO3(aq)

d.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.50 M AgNO3(aq)

chemistry - DrBob222, Tuesday, November 6, 2012 at 1:11am
Calculate (Ag^+) and (SO4^2-), substitute into Ksp expression. That is Qsp.
If Qsp > Ksp a ppt will occur. If Qsp < Ksp, no ppt will occur.
For example, a)
(SO4^2-) = 150.0 x 0.10/155.0)= 0.0968M
(Ag^+) = 5.0 x 0.2/155.0 = 0.00645M
(0.00645)^2(0.0968) = 4.03E-6 which is smaller than Ksp = 1.20E-5; therefore, no ppt of Ag2SO4 will occur.

E-6
chemistry - chem question, Tuesday, November 6, 2012 at 1:23am
Thanks, I got it!

Answer this Question

Related Questions

ap chemistry - When 50.0 mL of a 0.010 M CuNO3 solution is mixed with 150.0 mL ...
Chemistry - Which of the following substances has the greatest solubility in ...
Chemistry (urgent) - Hi, I have a few chemistry problems that I'm having ...
chemistry - An AgNO3 solution (44 mL/0.44 M) has been mixed with an NaCl ...
Chemistry - Hi, I have a few chemistry problems that I'm having trouble ...
chemistry - Solid Na2SO4 is added to a solution which is 0.014 M in Pb(NO3)2 and...
CHEM-KSP/KA PROBLEMS - really don't quite understand how to set up a ...
chemistry - Please judge my answer Question:A solution of AgNO3 (45 mL/0.45 M) ...
Chemistry - We performed a lab in class about a month ago concerning different ...
Chemistry - An excess of aqueous AgNO3 reacts with 24.5 mL of 5 M K2CrO4(aq) to ...

For Further Reading

First Name:
School Subject:
Answer: