13. At 25 °C, 4 mg of PbSO4 will dissolve in 100 cm³ of pure water. Calculate Kp of PbSO4.14. It is necessary to add iodide ions to precipitate lead(11) ion from 0.0060 M Pb(NO₂)2(aq).(a) What (minimum) lodide ion concentration is required for the onset of Phla precipitation?(b) What mass (in grams) of KI must be added for Pbl to form in a sample of volume 50 ml?

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13. At 25 °C, 4 mg of PbSO4 will dissolve in 100 cm³ of pure water. Calculate Ksp of PbSO4.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter14: Chemical Equilibrium

Section: Chapter Questions

Problem 14.79QE

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Question

13. At 25 °C, 4 mg of PbSO4 will dissolve in 100 cm³ of pure water. Calculate Kp of PbSO4.
14. It is necessary to add iodide ions to precipitate lead(11) ion from 0.0060 M Pb(NO₂)2(aq).
(a) What (minimum) lodide ion concentration is required for the onset of Phla precipitation?
(b) What mass (in grams) of KI must be added for Pbl to form in a sample of volume 50 ml?

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