Question

which is the weakest acid and strongest acid?

Answer 1

there are acids that are edible (eatable) like citric acid, phosphoric acid, acetic acid etc and then there are non edible acids like hydrochloric acid, sulfuric acid, perchloric acid and nitric acid.

Answer 2

well but what are those 2 strongest and weakest acid in particular?? @asib1214

Answer 3

the ones i've mentioned above are the most popular acids and bases, it dones't matter which one you choose. :)
weak acids are citric acid and acetic acid
strong acids are HCl and sulfuric acid.

Answer 4

hmmm i see...but in whole world one strongest acid and one weaker acid? .lol :P

Answer 5

to give you a perspective how strong those "strong acids" really are, if you combined them with the right quantity they can virtually dissolve virtually anything in the world!!!!!!

Answer 6

we normally define weak acids as acids that have less number of hydrogen ions and strong acids with a large number of hydrogen ions......

Answer 7

ok thanks for the help ... )

Answer 8

fluoroantimonic acid is the strongest

Answer 9

acetic acid is pretty weak

Answer 10

I don't really like asib1214s response to this question, I would even go to say it is flat out wrong and totally avoids the question.

We have two ways to classify acids

Lewis acids are a substance that accept electrons
Lewis Basis are substance that donate electrons

Then there are, what you are more familiar with

Bronsted acids and bases (which are just a sub group of lewis acids/basis)

A Bronsted acid is a substance that donates hydrogens or more specifically protons
A Bronsted base is a substance that donates hydroxides

Acid/Base strength is actually solvent specific or environment the substance is in, mostly we talk about, so there is a problem with your question, as you do not dictate what solvent or material this acid or base would be in.

Now to assume you are talking about water.

I would also like to address the definition of a strong acid and base (when you hear it normally), we are talking about substances in water at this point

As for strong acids/bases they are normally defined as substances that completely dissociate in water. For example HCl, which is a strong acid completely dissociates into a positively charged hydrogen atom and a negatively charged chlorine atom, a strong base like NaOH does the same thing completely dissociates into a positive sodium ion and negative hydroxide atom.

A weak base/acid will have a equilibrium between associate and dissociated, so for example a portion of acetic acid will exist associated with its hydrogen, and the other portion of acetic acid will exist as a negatively charged ion with its hydrogen as a positively charged ion. This contrasts a strong acid/base because as soon as they are dissolved in water they dissociate completely and exist as ions.

To finish up we cant really say what the weakest acid/base is or strongest acid/base is because there are an innumerable large amount of chemicals that can exist in the universe.

I will link you to super acids though because they are some of the strongest we know of,

http://en.wikipedia.org/wiki/Superacid

Answer 11

I probably should have edited what I wrote but oh well sorry for any errors in my writing, if you have any questions feel free to ask

Answer 12

hmm yeah i get little bit of idea.... thanks @Australopithecus

Answer 13

YOU SAID WHICH
now we expect a list or options to pick from

if you can't provide those, I would be able to teach you the basics of strong and weak acids or the whole acid-base story. IT is barely a matter of concept, it is a matter of calculation as well.

Answer 14

There are also superacids and superbases which are said to have pH > 14 and pH < 0. Such as, fluorosulfuric acid, and lithium diisopropylamide. In essence, they are said to be stronger than pure sulfuric acid and/or some concentrated hydroxide base..