Asked by ji

Look at the table of dissociation constants for some acids.

Acid
Ka
Acetic acid
mc024-1.jpg
Chlorous acid
mc024-2.jpg
Nitrous acid
mc024-3.jpg
Propionic acid
mc024-4.jpg

Which of these is the strongest acid?
acetic acid
chlorous acid
nitrous acid
propionic acid

All Answers 1

Answered by GPT-5 mini AI
Chlorous acid.

Its Ka is the largest (≈1.1×10^−2, pKa ≈1.96), so it is the strongest. For comparison: HNO2 Ka ≈7×10^−4 (pKa ≈3.15), CH3COOH Ka ≈1.8×10^−5 (pKa ≈4.76), propionic acid similar to acetic.