pH?

[Boogymanx]

I can't really find this on the internets, so I thought that maybe one of you would know. My chemistry teacher doesn't know what pH means. We know that it's used to show the degree of sour in a mixture, but she doesn't know what it actually means. I think it has something to do with water(H), but I'm not really sure.

 

[Cormeh]

http://antoine.frostburg.edu/chem/senese/101/acidbase/faq/what-is-pH.shtml

Seem to be mathematical.

 

[Danimal]

pH is the measure of how acidic a substance is.

 

[carrera]

My chemistry teacher doesn't know what pH means

whaaaat? :O

its a way of measuring how acidic or basic a substance is

 

[AntiAnto]

potential of Hydrogen

 

[Muffin Man]

if your teacher doesnt know what pH is your school is ****ed...

a scale 1=extreme base 7=neutral 14=extreme acid, hydrogen ions and all that good stuff

 

[AntiAnto]

a scale 1=extreme base 7=neutral 14=extreme acid, hydrogen ions and all that good stuff

It is actually the exact opposite of what you said.

 

[Muffin Man]

oh, shit.. your right, lol.. just got up for school, and i find out we got a delay... so im just kind of tired hungry and bored, my bad dude.

 

[Cormeh]

I think he is already implying that he know's pH is the scale and measure of acidity or alkali in a substance or compound.

The question (as I've read it) is what does pH stand for?

 

[joule]

I think he is already implying that he know's pH is the scale and measure of acidity or alkali in a substance or compound.

The question (as I've read it) is what does pH stand for?

AntiAnto already said what it stands for.

potential of Hydrogen

 

[Cormeh]

As did I - http://www.halflife2.net/forums/showpost.php?p=1750864&postcount=2, I was referring to the other heathens.

 

[jverne]

pH is the measure of how many [H3O+] ions there are in a solution!

example:

if you have 0.01 mol/l (c) HCl solution, and the ionization is absolute (a=1, it means that every molecule of hcl has given away its proton)
if a=1 then the concentration of the solution is the same as the concentration of the [H3O+] ions:

c(solution)=[H3O+]=0.01 mol/l

then: pH=-log[H3O+] ---> pH=2 (it is a strong acid)

if you want to know how many [H3O+] ions there are just solve the logaritm:

pH=-log[H3O+] ----> 10^(-pH)=[H3O+] ----> [H3O+]=0.01 mol/l (because the ionization is absolute)

if it isn't there is another equation that helps!

 

[Axyon]

pH is the measure of how many [H3O+] ions there are in a solution!

example:

if you have 0.01 mol/l (c) HCl solution, and the ionization is absolute (a=1, it means that every molecule of hcl has given away its proton)
if a=1 then the concentration of the solution is the same as the concentration of the [H3O+] ions:

c(solution)=[H3O+]=0.01 mol/l

then: pH=-log[H3O+] ---> pH=2 (it is a strong acid)

if you want to know how many [H3O+] ions there are just solve the logaritm:

pH=-log[H3O+] ----> 10^(-pH)=[H3O+] ----> [H3O+]=0.01 mol/l (because the ionization is absolute)

if it isn't there is another equation that helps!

Well, in more simple terms it's the measurement of [H+] ions, and the dissociation of those ions in water when in an aqueous solution. The pH scale is logorithmic, so each successive decrease in pH value (eg. 14-13) shows a ten times increase of the concentration of [H+] ions.

 

[Beerdude26]

My chemistry teacher doesn't know what pH means

LOLOLOLOLOLOL
Where do you go to school again?

 

[The DemonWithin]

Don't you learn that in basic highschool chemistry? lol that's weird that your instructor doesn't know what pH means/is.

 

[Harryz]

Your chemistry teacher doesn't know what pH is? Your ****ing kidding me.

Definition of pH:

pH = -log10 [H+]

 

[Hectic Glenn]

pH is the measure of how acidic a substance is.

heh...and ph 7 or ph 10-12 are how acidic? Silly...lol.

 

[Harryz]

if your teacher doesnt know what pH is your school is ****ed...

a scale 1=extreme base 7=neutral 14=extreme acid, hydrogen ions and all that good stuff

Someone didn't pass GCSE Chemistry.

 

[Hectic Glenn]

hahahahaha i can't believe that post! dear dear me...

 

[Solaris]

Women Chemistry Teachers are stupid, evidence:
Me: This text book is crap, it suggests accupuncuture to help with smoking cravings. Its hardly very scientific.
Women Teacher: Well actually its all about energy flowing through the body, so it is scientific actually.

WTF DO YOU KNOW WHAT SCIENCE EVEN IS?

 

[Solaris]

Spagettios.
Plz delete.

 

[Glirk Dient]

...good job being sexist solaris.

Yeah your chem teacher is pretty bad if she doesn't know what PH is. That or she just said that to see if you would do some research on your own.

 

[Boogymanx]

...good job being sexist solaris.

Yeah your chem teacher is pretty bad if she doesn't know what PH is. That or she just said that to see if you would do some research on your own.

Hell, anything that I don't know I'm going to ask here anyway.

 

[Solaris]

Ive had 2 chemistry teachers who are women.

One died and one is crap.

 

[ericms]

For some reason I think he meant that his teacher didn't know what the acronym stood for.

I find it hard to believe she wouldn't know what pH measures.

 

[Yuri]

Ive had 2 chemistry teachers who are women.

One died and one is crap.

Did the dead one suck too? Or is that just because she's dead that she's so stupid?

I hate you.

 

[Solaris]

Did the dead one suck too? Or is that just because she's dead that she's so stupid?

I hate you.

No, only had her for 3 leasons then she died.

We then had subistute teachers for the rest of the year.

 

[Vegeta897]

Rofl at all the [stupid] people who didn't understand what the threadstarter was asking.

He wanted to know what it stood for. He even said in his post that she knew what pH measures.

I guess people just read until they find something funny and then proceed to post without reading the rest of the post.

Edit: Yes I know this seems sour, but I'm kind of under the weather so hmpf!

 

[Yuri]

No, only had her for 3 leasons then she died.

We then had subistute teachers for the rest of the year.

So women chem teachers are stupid because the one that you met was?

 

[Muffin Man]

Someone didn't pass GCSE Chemistry.

a scale 1=extreme base 7=neutral 14=extreme acid, hydrogen ions and all that good stuff

oh, shit.. your right, lol.. just got up for school, and i find out we got a delay... so im just kind of tired hungry and bored, my bad dude.

that and i havent even taken chem yet

 

[Axyon]

Rofl at all the [stupid] people who didn't understand what the threadstarter was asking.

He wanted to know what it stood for. He even said in his post that she knew what pH measures.

I guess people just read until they find something funny and then proceed to post without reading the rest of the post.

Edit: Yes I know this seems sour, but I'm kind of under the weather so hmpf!

"We know that it's used to show the degree of sour in a mixture, but she doesn't know what it actually means."

"degree of sour"

"sour"

What?

 

[Vegeta897]

"We know that it's used to show the degree of sour in a mixture, but she doesn't know what it actually means."

"degree of sour"

"sour"

What?

He may not have explained it well, but you don't have to purposely misunderstand. I think if you use some logic you can figure out what he means.

 

[Yuri]

I got him when I read it at first. Was confusering though.

 

[Beerdude26]

"We know that it's used to show the degree of sour in a mixture, but she doesn't know what it actually means."
"degree of sour"
"sour"
What?

Sour and acidic is the same word here in Belgium ("Zuur"). Mkay?

 

[Axyon]

He may not have explained it well, but you don't have to purposely misunderstand. I think if you use some logic you can figure out what he means.

Yeah, okay, I overplayed it but still... it's more of a dig at the teacher they have, who appears to be dangerously incompetent. Describing the pH scale as level of sour, and not actually knowing what pH itself stands for? Some Chemistry teacher.

Sour and acidic is the same word here in Belgium ("Zuur"). Mkay?

Ah, okay. I apologise for that. Still, your teacher seems a little... uninformed.

 

[Vegeta897]

Describing the pH scale as level of sour, and not actually knowing what pH itself stands for? Some Chemistry teacher.

She didn't describe it, he did. He probably just used his own words. Or the teacher said sour so the kids could understand easier. (What grade does she teach, thread-starter?)

And knowing what pH stands for isn't really necessary.
I wouldn't judge so quickly. She might win the nobel prize some day :O



Or not.

 

[Axyon]

She didn't describe it, he did. He probably just used his own words. Or the teacher said sour so the kids could understand easier. (What grade does she teach, thread-starter?)

And knowing what pH stands for isn't really necessary.
I wouldn't judge so quickly. She might win the nobel prize some day :O



Or not.

I know it's not necessary at that level of education, but you'd surely expect a Chemistry teacher to know what it means? I mean, it's got to come up somewhere in higher education.

 

[RakuraiTenjin]

if your teacher doesnt know what pH is your school is ****ed...

a scale 1=extreme base 7=neutral 14=extreme acid, hydrogen ions and all that good stuff

No he's saying she knows that, she doesn't know what the pH stands for.

IE: The acronym/letters itself, what are they short for.

 

[Boogymanx]

She didn't describe it, he did. He probably just used his own words. Or the teacher said sour so the kids could understand easier.

Or not.

I'm 14, first year second grade. No idea how that would be like in your school system. And like Beerdude said, sour and acidic is the same word in Dutch.

Thanks for the many friendly replies all. Thanks!
Also, I'd like to thank the people that actually read my post, and thank Beerdude for letting me know the word for zuur in English.

 

[Muffin Man]

youd probably be like a freshamn or sophomore, meaning your teacher probably should know what pH stands for. But oh well, right?