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doing it hold on
okay i cant figure out how to do it with -3 but this is with -2, you you could just replace the -2 with -3 and do the same steps: HBr is a strong acid so it dissociates completely in water: HBr + H2O = H3O+ + Br- 1mol HBr = 1mol H3O+ [HBr] = 2.6*10^-2. Therefore: [H3O+] = 2.6*10^-2 What is pH? pH = -log [H3O+] pH = -log (2.6*10^-2) pH = 1.59 What is [OH-] pH + pOH = 14.00 pOH = 14.00-pH pOH = 14.00 - 1.59 pOH = 12.41 [OH-] = 10^-pOH [OH-] = 10^-12.41 [OH-] = 3.85*10^-13 There is a very simple way to work out [OH-] [H3O+] * [OH-] = 10^-14 [OH-] = (10^-14) / (2.6*10^-2) [OH-] = 3.85*10^-13 I did both methods because OI am not sure what you have been taught.
Wait but what's the answer?
3.85*10^-13 But you would have to do the steps i just showed you but with -3
These are my answer choices A. 11.41 B. 5.95 C. 2.59 D. 8.05
Yes, what is the pH?
@jcoury I found the site where you copy pasted your answer here, that is indeed off topic, and does not help in any form. Please avoid this type of actions. thanks reference https://answers.yahoo.com/question/index?qid=20100809235159AAcCjxE
I didn't get it from that
It is verbatim as it seems.
Thank you so much! :)