Bonus points if you can explain the science of a standing bucket of tap water increasing in ph over time. Not sure I understand why you would ph water going on a soil grow unless your tap is seriously out of range.
Okay, bonus points for each of you for trying to educate me! But I'm not as smart as you guys so please excuse me for seeking a simple answer I can understand.
Thanks for the translation of the chemistry talk! Most excellent post.pH means (Potential Hydrogen) It is defined by this logarithm
To answer your question so you can understand it better. No amounts of hydrogen change. The hydrogen ion activity changes ---
(the aH).
As Co2 levels rise. So does the pH. Look at it like this for example: The longer the water sit's, the more dissolved O2 release's into the air. If pure water is exposed to air it becomes mildly acidic. This is because water absorbs carbon dioxide from the air, which is then slowly converted into bicarbonate and hydrogen ions (essentially creating carbonic acid).
Thanks for the translation of the chemistry talk! Most excellent post.
Okay, so you two have connected some dots for me and I'm learning from this thread. With that said, I'd like your opinion on the importance of pHing water that will go on a soil medium.pH means (Potential Hydrogen) It is defined by this logarithm(damn it won't post - see below)
To answer your question so you can understand it better. No amounts of hydrogen change. The hydrogen ion activity changes ---
(the aH).
As Co2 levels rise. So does the pH. Look at it like this for example: The longer the water sit's, the more dissolved O2 release's into the air. If pure water is exposed to air it becomes mildly acidic. This is because water absorbs carbon dioxide from the air, which is then slowly converted into bicarbonate and hydrogen ions (essentially creating carbonic acid).
