Lab Equipment: pH measurement with paper and meters [Part 1]
Lab Equipment: pH measurement with paper and meters [Part 1]
![Lab Equipment: pH measurement with paper and meters [Part 1]](<img src=http://i.ytimg.com/vi/uyfKU1jHwWI/default.jpg title=)
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In this video we briefly discuss ways of measuring pH using pH paper and a meter. Omega engineering sells a variety of pH meters and related equipment and will also sell to individuals: www.omega.com The Canadian site www.omega.ca
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thanks, nurd. I have a meter that’ll read to 0.001, but I didn’t realize it needs storing in salt, so I’ll have to do that. one point you could make is that, if your probe won’t read correctly in different buffers, you can set it to the pH that’s closest to your pH of interest, and that way you’ll know you get the vital reading more right.
nosebleed
lol i am doind this cauase i have end of year exam tomorrow and i am revising cause the exam decides my GCSE groups i wanna get top group again i have been top twise. wish me luck
Are you a T. A. at UTM by any chance?
@NurdRage After finishing first year chemistry at U of T, I couldn’t agree more with that comment.
@NurdRage I can’t belive you would say that it’s 99% dull. I like the experiments but the theory is very fascinating aswell.
How much of each material do you need? In class My group is doing this project and we want to know how much of alcohol, K-Permaganate, and S-acid is needed for the reaction to occur. Thanks!
@NurdRage
lol the ‘dull’ parts of chemistry I find the most fascinating
@NurdRage You are right.
I really like Chemistry myself, sometimes I’d all of a sudden looking for some random stuff about Chemistry on google…mostly that 1% cool stuff though, haha.
But well.. they aren’t dull, no offense to them but they really can’t teach..
and all my classmates reckon the same ^^
I do alot of subjects, Chemistry is the only one that I don’t revise for..
I gotta LEARN it by myself at home reading the book, cause the teachers are so terrible at explaining it’s unbelieveable xD
It is a coincidence that I had completed an experiment which involved an pH meter on Friday in the same week you uploaded this video about pH measurements. This is also my first time to use a pH meter.
The objective of the experiment was to measure the dissociation constant of acetic acid and formic acid by preparing buffer solutions of the acids and their corresponding salt of same concentration.
Thank you for providing background information of pH meters.
isnt water a ph of 7? why use the 7.1 ph liquid?
@martha2ful Is this comment a joke? I mean really…
@ZyGaming While the approach of a chemistry teacher depends on the teacher, the subject itself is 99% dull with only 1% cool stuff. I might look cool on youtube because i show mostly the 1% cool stuff. But to get to that 1%, you have to first slog through the 99%
Is your teacher *really* dull? or is the stuff they’re teaching dull?
You should be a Chemistry teacher.
I mean, you are gonna be the coolest Chemistry teacher ever.
All the students are gonna like you
I mean, much better than my Chemistry teachers anyway.
They just read from the textbook and tell us to copy them down..
There’s no rating anymore
It’s only Thumbs up ;D
@martha2ful technically yes….. but safety and liability would be an issue, any substance that powerful would also dissolve human flesh very effectively. Even a small splash out when you drop something would be a horrific.
I recommend just a mulcher or similar mechanical approach to grind the matter into a paste and then flush it or compost it.
Is there is any type of acid, etc. that would be able to completely dissolve a vegetable plant upon contact, or within say a matter of minutes?
A client of my landscaping company wants to have a large container filled with a substance that she can throw her unwanted vegetable plants, leaves, etc. into and have them completely dissolve in the shortest amount of time possible, preferably on contact. Any advice, or suggestions would be greatly appreciated.
Thank you.
subs?
@ducati929 ah gotcha
@NurdRage tried to answer to the comment posted by the person wanting to run electrolysis through his wall outlet. Not sure why it finished up as a stand alone post
@NurdRage Disregard this one, wasn’t paying adequate attention to video – missed the pH 7 bath was a buffer solution, was thinking it was DI water, which would likely have dissolved CO2 and thus a lower pH, explaining the “overcorrection” I perceived that wasn’t really there
@ducati929 what?
@ducati929 huh?
Not to mention the fact it’s AC current.
Dissolved CO2 in the DI water likely gave you the low pH