2. Use the Davies Equation to calculate the values of K and p°K from the correspondingvalues of K at an ionic strength of 0.20 M. Report your answer to the appropriate numberof significant digits.a) H,0=H + OHb) Pb2t +H,O PBOH +Hc) CaCo,(s) Ca? +d) Fe(OH), (s) Fe" +30He) Cd* +2CI CdCl,(aq)Kw = 10-13.997Ka =10-12.62-+co,?Kso = 10-8.48%3DKso = 10-38.6K2 = 102.60Ans: a) 1.89x10 14, 13.723; b) 1x10 13,12.9; c) 4.1x10 , 7.38; d) 1x10 37, 37.0; e) 6.0x10', -1.78

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2. Use the Davies Equation to calculate the values of CK and pck from the corresponding values of K at an ionic strength of 0.20 M. Report your answer to the appropriate number of significant digits. a) H₂O H+OH Kw = 10-13.997 K₂ = 10-12.6 b) Pb²+ +H₂O=PbOH + H c) CaCO₂ (s) Ca²+ + CO₂² Ks0= 10-8.48 d) Fe(OH),(s)-Fe³ +30H Ks0= 10-38.6 e) Cd +2C1CdCl₂(aq) K₂ = 102.60 Ans: a) 1.89x10-14, 13.723; b) 1x10 13,12.9; c) 4.1x10 , 7.38; d) 1x10 37, 37.0; e) 6.0x10¹, -1.78

2. Use the Davies Equation to calculate the values of CK and pck from the corresponding values of K at an ionic strength of 0.20 M. Report your answer to the appropriate number of significant digits. a) H₂O H+OH Kw = 10-13.997 K₂ = 10-12.6 b) Pb²+ +H₂O=PbOH + H c) CaCO₂ (s) Ca²+ + CO₂² Ks0= 10-8.48 d) Fe(OH),(s)-Fe³ +30H Ks0= 10-38.6 e) Cd +2C1CdCl₂(aq) K₂ = 102.60 Ans: a) 1.89x10-14, 13.723; b) 1x10 13,12.9; c) 4.1x10 , 7.38; d) 1x10 37, 37.0; e) 6.0x10¹, -1.78

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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