Table of Contents
Which is more acidic HF HCl HBr or HI?
HCl, HBr, and HI are all strong acids, whereas HF is a weak acid. The acid strength increases as the experimental pKa values decrease in the following order: HF (pKa = 3.1) < HCl (pKa = -6.0) < HBr (pKa = -9.0) < HI (pKa = -9.5). Shorter bonds are more stable, and thus the H-F bond is more difficult to break.
Which of the following would have a greater boiling point HF or HBr?
We can conclude, the order of boiling point followed is HF > HI > HBr > HCl.
Is HF a binary acid?
Binary acids are certain molecular compounds in which hydrogen is combined with a second nonmetallic element; these acids include HF, HCl, HBr, and HI.
What are 3 examples of binary acid?
‘ Examples of binary acids include hydrobromic acid (HBr), hydrochloric acid (HCl), hydrofluoric acid (HF), and hydroiodic acid (HI).
Which is more ionic HF or HCl?
Ionic character follows the order HF >HCl>HBr> HI. As electronegativity difference increses ionic character increases.
What is HF as a binary compound?
Binary molecular compounds are compounds that consist of exactly two nonmetal elements. Examples include HF, NO2, and P2O5.
What is the name of HI as a binary compound?
hydroiodic acid
Acids
| Names of common acids | |
|---|---|
| formula | name |
| HCl | hydrochloric acid |
| HBr | hydrobromic acid |
| HI | hydroiodic acid |
What is the name of HF as a binary compound?
The name of the HF compound is Hydrogen Fluoride. Additionally, HF is a binary acid (made between H+ and an anion). For binary acids, we use the following rules: The prefix will be hydro. Use the base name of the nonmetal or anion.
What is the boiling point of HF HCl HI HI HBr HBR?
The boiling points of HF,HCl,HBr and HI follow the order HF>HI>HBr>HCl. HF is hydrogen bonded, thus has highest boiling point, and it is liquid at or below 19 oC. The remaining hydrogen halides are gaseous and their boiling points depend on the van der waal’s forces.
Why does HCL have the highest melting and boiling point?
Highest: HF due to H-bonding. Lowest: HCl because it has the smallest London force of all compound lacking hydrogen bonding. Note that the effect of hydrogen bonding is profound. between molecules, and therefore has the highest melting and boiling points of the HX series. From HCl to HI the boiling point rises.
Why is HCl the strongest acid in nature?
HCl and the rest of them (HBr, HI) are all “strong acids” but HI is the strongest (see pKa’s below) Due to poor orbital overlap (Iodine is much larger than H, and therefore the electrons are not very well shared, which imparts an extremely ionic character to the molecule)
Which compound has the highest boiling point and why?
Hydrogen bonding is the attraction between highly electronegative atoms with hydrogen bonded covalently. This attraction is stronger than London dispersion forces hence the presence of a hydrogen bond significantly raises the boiling point of the compound. Hence, HF has the highest boiling point amongst the four compounds.