answersLogoWhite

0

The most acidic is HI with a pKa of -9.5, followed by Hbr then HCl and the least acidic is HF with a pKa of 3.18. The reason is that F is so electronegative it is highly hydrogen bonded. Dilute solutions are weakly acidic.

The iodide ion is the largest of all the halides (Astatine excluded because of its rarity and radioactivity) which results in the negative charge being delocalized over a larger volume of space.

The chloride ion is significantly smaller, meaning its negative charge is more concentrated in a smaller volume of space, leading to a stronger interaction between the proton and the chloride ion. This weaker H+ ---> I- interaction in HI facilitates dissociation of the proton from the anion, and is the reason HI is the strongest acid of the hydrohalides except for hydrohalide formed from Astatine- in theory.

see the related link for more information

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

Among halogen acids which one the strongest acidriiiiiiiteee?

In terms of acidity HI > HBr > HCl > HF


What is the basicity of HCL?

HCl is an acid, so it does not possess basicity but rather acidity. Its basicity is 0.


What is the acidity of HCl?

The acidity of hydrochloric acid (HCl) is very high. It is a strong acid that completely dissociates in water to produce hydrogen ions, making it a powerful acid.


What acid is responsible for stomach acidity?

Hydrochloric acid (HCl)


Which bonds display least ionic character NaCl HCl OCl or BrCl?

HCl displays the least ionic character among the given compounds. This is because HCl is a covalent bond between nonmetals, resulting in a sharing of electrons rather than a transfer. NaCl, OCl, and BrCl are all ionic bonds between a metal and a nonmetal, leading to a complete transfer of electrons and a higher degree of ionic character.


Which is least polar HF HBr HCl or Hbr?

HF is the least polar among these molecules because it has the smallest difference in electronegativity between the hydrogen and the fluorine atoms.


What is the pH level of hydrochloric acid (HCl)?

The pH level of hydrochloric acid (HCl) is very low, typically around 0 to 1, indicating a strong acidity.


IS HCl BTB Ionic?

Hydrochloric acid (HCl) is a covalent compound, not ionic. BTB (bromothymol blue) is a pH indicator that changes color based on the acidity or basicity of a solution.


Which is better company among aricent and hcl technologies?

ARICENT


What are LCM and HCL?

LCM stands for "least common multiple" HCL, usually written with a lower case L (HCl), stands for hydrochloric acid.


Why does pH of HCl increase as HCl is diluted?

The pH increases because the HCl is becoming less acidic. A pH of 7 is neutral. A pH falls below 7, acidity increases. As pH rises above 7, basicity increases. Diluting HCl means that the HCl becomes less concentrated, and therefore, less acidic. As it becomes less acidic, the pH will become more basic, and thus increase.


Mg ribbon is allowed to react with hcl and another with ch3cooh in which fizzing will occur more vigorously and why?

Mg ribbon will react more vigorously with HCl compared to CH3COOH because HCl is a stronger acid than CH3COOH. This higher acidity of HCl results in a faster reaction rate with magnesium, leading to more intense fizzing.