Add or Drop Classes Sapling Learning M. University of yUSF Short Assignment 13..

Question

Add or Drop Classes Sapling Learning M. University of yUSF Short Assignment 13.. Jump outh Florida- CHM 2046-Spring18-ALL SECTIONS Activities and Due Dates Chapter 17 4/4/2018 11:30 PM 5.4/15 4/4/2018 06:20 PM Print Calculator Periodic Table Gradebo Question 14 of 14 Map Sapling Learning Al 22 'C an excess amount of a generic metal hydroxide M(OH)2 is mixed with pure water. The resulting equilibrium solution has a pH of 10.34. What is the Kp of the salt at 22 c? Number O Previous Give Up & View Solton e Check Answer 0 Next Exit about us careers privacy policy terms of use contact us help

Explanation / Answer

PH = 10.34

POH   = 14-PH

         = 14-10.34

         = 3.66

-log[OH^-]   = 3.66

   [OH^-]     = 10^-3.66

[OH^-]    = 0.0002187M

M(OH)2 (s) ----------------------> M^2+ (aq) + 2OH^- (aq)

                     M^2+ : OH^-

                        1 : 2

       0.00010935 : 0.0002187

         Ksp    = [M^2+][OH^-]^2

                  = 0.00010935*(0.0002187)^2

                  = 5.23*10^-12

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