answersLogoWhite

0


Best Answer

The strongest acid you can form in water is hydronium (H3O+) and the strongest base you can form in water is hydroxide (OH-).  Any acid more acidic than H3O+ or any base more basic than OH- will react completely with water to form H3O+ or OH-.  That is why the strength of strong acids and bases cannot be measured in water.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why are the pkas of very strong and very weak acids cannot be measured in water?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

What are the strong and weak acids?

Strong acids are acids that dissociate readily from their hydrogen ion(s). Examples include: Strong acids HCl, hydrochloric acid HNO3, nitric acid HI, hydroiodic acid H2SO4, sulfuric acid HBr, hydrobromic acid HClO4, perchloric acid HClO3, chloric acid Weak acids do not dissociate readily from their hydrogen ions. They, therefore, act weakly as an acid. All edible acids are, naturally enough, weak acids. Examples include: Weak acids HCN, hydrocyanic acid (COOH)3C3OH, citric acid tartaric acid, lactic acid, oxalic acid ...


Which is strong acid water or phenol?

Both water and phenol are very weak acids. Though phenol is the stronger of the two.


What substance increases the number of H3O plus when dissolved in water?

Amy of the seven strong acids such as HCl and HBr


Why are some proteins water soluble and others proteins are not?

The solubility of proteins in water is determined by their structure and amino acid composition. Proteins with a high proportion of hydrophilic amino acids (such as charged and polar amino acids) tend to be water soluble. Conversely, proteins with a high proportion of hydrophobic amino acids (such as nonpolar amino acids) tend to be insoluble in water. Additionally, the presence of strong intra- or intermolecular forces (such as disulfide bonds) can also contribute to protein insolubility in water.


How does mixing create heat?

Strong acids ( like sulphuric acids) and strong bases (like potassium hydroxide) are notourios for heating up very violently when mixed with water, or even worse with eachoter. This is isn't very recommended for experimentating because of the extreme hazards.

Related questions

List 3 strong acids and explain why these acids are considered strong acids?

Nitric, sulphuric, hydrochloric. They are all strongly dissociated in water.


Why is hydrogen chloride acidic?

By Arrhenius's definition it isdissociatesin water to release H+. Which it does:HCl (in water) --> H+ + Cl-By the Bronsted-Lowry definition it is a proton donor, which it is. It only becomes an acid in water.Water has a limiting effect on the strength of acids and bases. All strong acids behave the same in water -- 1 M solutions of the strong acids all behave as 1 M solutions of the H3O+ ion -- and very weak acids cannot act as acids in water. Acid-base reactions don't have to occur in water, however.


Is sulfuric acid and nitric acid strong or weak acids in aqueous solution?

Both are very strong acids in water.


Acids whose molecules dissociate completely into ions in water solutions are?

strong acids like hydrochloric acid, sulfuric acid, nitric acid etc


What are the effects of acids on bases?

Strong acids on strong bases. HCl + NaOH --> NaCl + H2O A neutralization reaction producing a salt and water.


What do strong acids produce lots of?

Strong acids produce lots of H+ ions which when combine with water form hydronium ions(H3O+).


How do you classify acids into strong acids and weak acids?

A strong acid is an acid which completely dissociates (this means that it breaks up into a hydrogen cation and some anion) in water. All other acids are considered weak.


Identify weak and strong acids and bases?

Identifying Weak acids and bases depend on: When The Elements of these acids react they completely ionise with water and form Strong salts without being in the oh- situation, then its a strong Acid.


Why is hydrochloric a strong acid?

Strong acids are those acids which completely dissociate into its ions in aqueous solutions. since hydrochloric acid does exactly the same, it is called a strong acid


What is an example of strong acid?

The strongest of acids are called fuming acids or anhydrous acids. Fuming nitric and fuming sulfuric acids are so strong that adding water to them converts them to nitric and sulfuric acids generating a very great amount of heat. Anhydrous acetic acid is likewise so strong that adding water will convert it to 100% acetic acid. These 3 acids are used in special reactions in chemistry where only the strongest acids will do.


Both strong acids and strong bases are highly corrosive?

They both dissociate virtually 100% in water.


Are organic acids strong or weak why?

Organic acids are weak because they do not give OH - ions when dissolved in water.