Search Textbook Solutie x G write the example prog x Alab

* Search Textbook Solutie x \\ G write the example prog x / Alabama State Universi XX ) Search Textbook Solutie x \\c Chemistry question | C X X > Southwest Airlines - Sex e - OX CO www.saplinglearning.com/ibiscms/mod/ibis/view.php?id=4589194 e - a X New Tab - e a Sapling Learning macmilan learning * ALLEImpes Score * 8 : Apps 0 Scholarship Award for Scholarship Opportur \"Hit the Books\' Schol = Print Calculator - Periodic Table Ouestion 12 of 20 100 VOTOJIETTUTTO JETTEUTUTTIVVIVT 200 Mapod Sapling Learning 3 0 0 Due Date: 2/26/2018 11:59 PM Points Possible: 100 Grade Category: Quiz 3 Description: Use the pH lab to complete the table. 400 500 H Policies: QUIZ concentration (M) concentration (M) 600 10- 10- You can check your answers. You can view solutions after the due date. You have three attempts per question. There is no penalty for incorrect answers. 700 800 10-7 10- OeTextbook 900 10 10-9 1000 O Help With This Topic 5 7 149 o Web Help & Videos 1100 12 0 0 O Technical Support and Bug Reports 1300 1400 1500 10 Previous Q Check Answer O Next Exit V Hint O Type here to search o a i u s. e wa 0 9:22 PM a A a D a 2/25/2018 520

Solution

         PH                        [H^+]                                                [OH^-]

        9                         10^-9                                                 10^-5

        7                          10^-7                                                10^-7

        5                         10^-5                                                 10^-9

1. PH = 9

   -log[H^+] = 9

      [H^+]   = 10^-9

   [OH^-]   = 10^-14/[H^+]

                 = 10^-14/10^-9 = 10^-5M

2. [H^+]   = 10^-7M

     PH = -log[H^+]

             = -log10^-7

             = 7

[OH^-]    = 10^-14/[H^+]

                = 10^-14/10^-7 = 10^-7

3.    [OH^-]    =10^-9 M

       [H^+]    = Kw/[OH^-]

                  = 10^-14/10^-9    = 10^-5M

       PH   = -log[H^+]

               = -log10^-5

                = 5