Question

A solution is 0.085 M in Pb2+ and 0.025 M in Ag+. A. If selective precipitation...

A solution is 0.085 M in Pb2+ and 0.025 M in Ag+.

A. If selective precipitation is to be achieved using NaCl, what minimum concentration of NaCl do you need to begin to precipitate the ion that precipitates first?

B. What is the concentration of each ion left in solution at the point where the second ion begins to precipitate?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A solution contains 0.032 M Ag and 0.015 M Pb2 . If you add Cl–, AgCl...
A solution contains 0.032 M Ag and 0.015 M Pb2 . If you add Cl–, AgCl and PbCl2 will begin to precipitate. What is the concentration of Cl– required, in molarity, when: A. AgCl precipitation begins? B. AgCl precipitation is 99.99% complete? C. PbCl2 precipitation begins? D. PbCl2 precipitation is 99.99% complete? Finally, give the concentration range of Cl– for the complete separation of Ag and Pb2 . E. Concentration of Cl– at the start: F. Concentration of Cl– once...
Silver chloride has Ksp = 1.6 x 10-10 and silver chromate has Ksp = 9.0 x...
Silver chloride has Ksp = 1.6 x 10-10 and silver chromate has Ksp = 9.0 x 10-12. We have 1.00 liter of a solution which contains both NaCl (0.10 M) and Na2CrO4 (0.10 M). Solid AgNO3 is added slowly and the solution is stirred well. a) Which salt precipitates first, AgCl or Ag2CrO4? (Show your work!) b) What are the concentrations of [Ag+], [Cl-], and [CrO42-] at the point when the second salt just begins to precipitate? c) Is this...
A solution of NaSCN is added dropwise to a solution that is 0.0821 M in Hg22+...
A solution of NaSCN is added dropwise to a solution that is 0.0821 M in Hg22+ and 0.0142 M in Cu+. The Ksp of Hg2(SCN)2 is 3.2e-20. The Ksp of CuSCN is 1.77e-13. (a) What concentration of SCN- is necessary to begin precipitation? (Neglect volume changes.) (b) Which cation precipitates first? Hg2 2+ or Cu+ (c) What is the concentration of SCN- when the second cation begins to precipitate?
A solution of NaF is added dropwise to a solution that is 0.0532 M in Mg2+...
A solution of NaF is added dropwise to a solution that is 0.0532 M in Mg2+ and 1.43e-05 M in Y3+. The Ksp of MgF2 is 5.16e-11. The Ksp of YF3 is 8.62e-21. (a) What concentration of F- is necessary to begin precipitation? (Neglect volume changes.) [F-] =  M. (b) Which cation precipitates first? Mg2+Y3+      (c) What is the concentration of F- when the second cation begins to precipitate? [F-] =  M.
A basic solution contains the iodide and phosphate ions that are to be separated via selective...
A basic solution contains the iodide and phosphate ions that are to be separated via selective precipitation. The I– concentration, which is 7.80×10-5 M, is 10,000 times less than that of the PO43– ion at 0.780 M . A solution containing the silver(I) ion is slowly added. Answer the questions below. Ksp of AgI is 8.30×10-17 and of Ag3PO4, 8.90×10-17. Calculate the minimum Ag+ concentration required to cause precipitation of AgI. Calculate the minimum Ag+ concentration required to cause precipitation...
A solution of Na3PO4 is added dropwise to a solution that is 0.0219 M in Ca2+...
A solution of Na3PO4 is added dropwise to a solution that is 0.0219 M in Ca2+ and 7.03e-06 M in Al3+. The Ksp of Ca3(PO4)2 is 2.07e-33. The Ksp of AlPO4 is 9.84e-21. (a) What concentration of PO43- is necessary to begin precipitation? (Neglect volume changes.) [PO43-] = ___________ M. (b) Which cation precipitates first? Ca2+ Al3+     (c) What is the concentration of PO43- when the second cation begins to precipitate? [PO43-] = _____________ M.
An ideal Pb2 ion-selective electrode is moved from a 5.59 × 10-5 M PbNO3 solution to...
An ideal Pb2 ion-selective electrode is moved from a 5.59 × 10-5 M PbNO3 solution to a 0.00449 M PbNO3 solution at 25 °C. By how many millivolts will the potential of the ion-selective electrode change when it is moved from the first solution to the second solution?
A basic solution contains the iodide and phosphate ions that are to be separated via selective...
A basic solution contains the iodide and phosphate ions that are to be separated via selective precipitation. The I– concentration, which is 9.60×10-5 M, is 10,000 times less than that of the PO43– ion at 0.960 M . A solution containing the silver(I) ion is slowly added. Answer the questions below. Ksp of AgI is 8.30×10-17 and of Ag3PO4, 8.90×10-17. Calculate the minimum Ag+ concentration required to cause precipitation of AgI. (Answer in mol/L) Calculate the minimum Ag+ concentration required...
An unknown solution is known to contain one of these ions (Ag+ , Pb2+, Hg22+). Which...
An unknown solution is known to contain one of these ions (Ag+ , Pb2+, Hg22+). Which ion is present if adding NaCl produces a white precipitate that dissolves when the solution is warmed? Please refer to the diagram below.
A solution is 0.0010 M in both Ag+ and Au+. Some solid NaCl is added slowly...
A solution is 0.0010 M in both Ag+ and Au+. Some solid NaCl is added slowly until the second solid compound just begins to precipitate. What is the concentration of Au+ ions at this point? Ksp for AgCl = 1.8 x 10-10 and for AuCl is 2.0 x 10-13
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT