- Joined
- Jun 25, 2016
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Guys i have a question about calculating ph problem.. I've been doing this one weird method for every one of those problems and it works.. i want to run it by u guys and see if this is even a thing or I'm just getting lucky lmao
so the question states: What is the pH of 1.0 x 10^-4 M Ca(OH)2 solution
1. this guy has an OH in it so [OH] = 1.0 x 10^-4
2. pOH is going to be 3 ish or 4 ish ...
3. pH is going to be 14-3 = 11 or 14-4 = 10
4. some number between 10 and 11... and the answer is 10.3
is this normal? is this actually a thing? am i just getting lucky.. PLEASE because if it works for all like i wanna keep using it.
so the question states: What is the pH of 1.0 x 10^-4 M Ca(OH)2 solution
1. this guy has an OH in it so [OH] = 1.0 x 10^-4
2. pOH is going to be 3 ish or 4 ish ...
3. pH is going to be 14-3 = 11 or 14-4 = 10
4. some number between 10 and 11... and the answer is 10.3
is this normal? is this actually a thing? am i just getting lucky.. PLEASE because if it works for all like i wanna keep using it.