miahSegenSamma miahSegenSamma

23-12-2016
Chemistry

contestada

12. Calculate the hydroxide ion concentration of a solution with pH = 10.25. Show all calculations leading to an answer.

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Peytiii2829 Peytiii2829

23-12-2016

pH= log[H3O+]
10.25=log [H3O+]
[H3O+] = 10^10.25
[H3O+]= 1.778 ×10^10

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MissPhiladelphia MissPhiladelphia

26-12-2016

pH + pOH = 14 10.25 + pOH = 14 pOH = 14 - 10.25 = 3.75 Now, knowing the pOH we can find the OH^- since pOH is -log [OH-] [OH-] = 10^-3.75 = 1.78x10^-4 M

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