The weakest acid among HCI, HBr, HF, and HI is HF (hydrogen fluoride).
Here's why:
- Acid strength is determined by the ease with which an acid donates a proton (H+).
- The strength of the bond between the hydrogen and the halogen atom impacts the acid's strength.
- As you go down the periodic table, the bond between hydrogen and the halogen becomes weaker, making it easier to break and release the proton.
Therefore, HI is the strongest acid, followed by HBr, HCl, and lastly HF. HF has the strongest bond due to its smaller size and stronger electronegativity, making it the weakest acid among the given options.
