Page 1 of 1

Acid and Bases Help

Posted: Sat Mar 27, 2021 11:04 pm
by skycracker00
Can anyone tell me what I'm doing wrong here? For the [H3O+] and [OH-], I'm calculating their pH by simply inserting the given numbers into the -log equation but I feel like that's wrong. How can I find the pH values for those ones? Thanks.

Re: Acid and Bases Help

Posted: Sun Mar 28, 2021 1:25 am
by ChenBeier
You forgot the equilibrium for water, if you have concentration around 10^-7

https://preparatorychemistry.com/Bishop ... ibrium.htm

Re: Acid and Bases Help

Posted: Sun Mar 28, 2021 2:04 pm
by skycracker00
Thanks so much! I probably missed that in the textbook

Re: Acid and Bases Help

Posted: Wed Mar 31, 2021 5:26 am
by Chelsea_Rogers
Thanks for sharing this information. Really helpful in the exam coming soon.