Recent content by [-Log10H+]

Thanks for all your help Borek. Just a quick question, i was wondering whether in your opinion electronic pH meters are accurate?

Excellent! thankyou for your explanation. I have a couple more questions but these are comparatively easy. First off 5% acetic acid has a ph of 2.42 so i take it citric acid must be a much stronger acid? This may sound like a daft question but i read somewhere that there was a difference...

Thankyou very much for your reply, i should have said at the beginning that I'm not studying chemistry or anything and i only have a gcse in it so I'm about as smart as rodney :smile:. At the moment what i basicaly want to know is why the discrepancy between the reported pH values for lemon...

That calculator gives accurate results for vinegar and 25% citric acid with water but doesn't seem to give an accurate result for lemon juice which is often cited as: "a 5-7% solution of citric acid with a pH of 2.3" The calculator say 5% citric acid has a pH of 1.87, the calculator...

Hello, i would really appreciate it if someone could help me with this problem. I would like to know the pH of citric acid at various concentrations. 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%. From what i have read it has something to do with its pKa value which for citric acid is...