All Questions
4
questions
2
votes
0
answers
129
views
What has happened with the pH-meter?
The glass sensor has became red inside like something melted. I stored it in a liquid with pH that mentioned in the manual. What is that and why could that happen, how often that happens with pH-...
- 315
0
votes
1
answer
745
views
What the difference in data if calibrate pH-meter with 2 and 3 solutions? [closed]
pH-meter (12 bucks one) can be calibrated with 2 different solutions (let's say 4.0 and 6.86), but as an option 3 can be used (4.0, 6.86 and 9.18). If I use 2 instead of 3, what error I'm going to get....
- 315
22
votes
2
answers
5k
views
pH probe bulb - what is happening within the glass?
I am trying to understand how the glass bulb of a pH electrode of a pH meter works - the glass bulb itself. Not the reference electrode or the rest of the electrode (HCl, Ag/AgCl wire, etc...), the ...
- 5,900
3
votes
2
answers
17k
views
Solution for storing a glass electrode
What kind of storage solution is required for a glass electrode?
Is 3 M $\ce{KCl}$ sufficient for this purpose? If so, what is the approximate pH of that solution (the solution I use presently has a ...
- 169