My Dremmel is very good at etching glass. How do I find out if it's an acid or a base?

 

Wrap it in litmus paper and throw it in the bath.

and no putting in Radox or Bath Salts, it`ll falsify your results as they`re both Base

In theory though using an electric pH measurer (yes ignore potential differences) would it register as pH 0?

You mean your beaker full of protons from the first post?

would what register as zero dude?

My Dremmel is registering as 0.

 

I think it might be broken - although it is still etching.

YT2095 said in post # :

would what register as zero dude?

 

When the concentration of H+ (or, more correctly H₃O+) is equal to the concentration of the acid. Basically (boom boom).

 

(How do you do superscript? [super]doesn't seem to work[/super])

{sup}

Idiot thing

You can have a minus pH, and a pH of above 12.

The pH of the beaker of protons would register as zero.

Kids are told in school that there is a pH range of 1-14 purely for the reason that they wont encounter anything outside this range in school, and its reasonably simple for their minds to grasp. By the time you actually move onto to pH calculations, conjugate bases and all that monkey business, it will become evident the pH range can go below 0 and above 14.

 

pH doesnt stand for anything, its a mathematical operation involving the concentration of hydronium ions.

 

pH = -log[H30]

 

Thus for a very high hydronium ion concentration, say for example 20M, the pH will be -1.3.

When you have more protons the ionisation of the indicator moves in the reverse direction so that less is ionised, the more protons the more acidic I think if you had a beaker full the the pH would be very much so minus.

And good explanation greg

Oh lol and also on that link i put in on the previous page, I have explained how to clalculate pH, for acids and bases (using Kw).

ed84c said in post # :

In theory though using an electric pH measurer (yes ignore potential differences) would it register as pH 0?

 

from there I did ask what would register as "Zero" I think from the previous threads maybe you meant water? (baths and stuff?).

 

PH would still be at 7, but you`re quite right, it wouldn`t register

that`s why the passive PH meters use center calibrated needles and the 2 disimilar matals (Alu and Iron usualy).

in water there will be no reaction and the needle will not move, but on the meter the markings will say PH 7 at center position

 

the interesting part happenes when the probes are in an acid , one will be + the other - and so the needle will swing one way. in an alkaline it will be the opposite and so the needle will go the other way

 

most DVM`s work the same way (Digital Volt Meters), only difference is that no voltage (ph 7) will read as 0.00

depending on what metal you have on what electrode it will read a voltage 1.45 v for example, now use the same electodes in an alkaline it may read -1.12.

now, change on the LCD screen the "-" sign to ACID or Alkaline and you have your PH meter, of course, the 0.00 in water will have to be changed to 7.00, but it`s digital, that`s literaly seconds of work to a manufacturer

 

 

hope that helps a little

no i meant the beaker of protons

well if you can do that, mail me, that`s somethin I`de like to see

Would a beaker of OH- ions be the most alakline material possible?

Being only 14 i dont have the resources im afraid unless you can buy protons of ebay................

(that was a joke)

ed84c did you read my post, its NOT 0.

ed84c said in post # :

Would a beaker of OH- ions be the most alakline material possible?

 

JUST OH ions only, nope, it`s not possible to my knowledge

 

secondly: they try sell anything on Ebay, I really wouldn`t be surprised if someone claims to have a bag of dried protons on there )))

surely the protons wouldnt be wet

More protons more acidic less pH all protons minus pH ok