Is HIO a weak acid?
Is HIO a weak acid?
5 HIO → HIO3 + 2 I2 + 2 H2O. Hypoiodites of alkali and alkaline earth metals can be made in cold dilute solutions if iodine is added to their respective hydroxides. Hypoiodous acid is a weak acid with a pKa of about 11. The conjugate base is hypoiodite (IO−).
What makes a strong acid a strong acid?
Strong acids are defined by their pKa. The acid must be stronger in aqueous solution than a hydronium ion, so its pKa must be lower than that of a hydronium ion. Therefore, strong acids have a pKa of <-174. Strong acids must be handled carefully because they can cause severe chemical burns.
Which of the following is the strongest acid ClO3 Oh?
Hint: Perchloric acid is the strongest acid with molecular formula, ClO3(OH).
What is the strongest acid among the following HF HCl HBr hi?
Acid Strength and Bond Strength 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).
Which is the strongest acid among the following aromatic compounds?
ortho-nitrophenol takes part in hydrogen bonding which makes it less acidic than the para-nitrophenol. So para-nitrophenol is the strongest acid among the following aromatic compounds. So, the correct answer is Option C.
Which of the following is not an aromatic?
1,2,5-heptatriene is not an aromatic compound because complete delocalization of π-electrons is not possible in it.
What are the weak acids and bases?
Weak Acids & Bases
| Common Weak Acids | Common Weak Bases | |
|---|---|---|
| Trichloroacetic | CCl3COOH | pyridine |
| Hydrofluoric | HF | ammonium hydroxide |
| Hydrocyanic | HCN | water |
| Hydrogen sulfide | H2S | HS− ion |
Is weak acid dissociation reversible?
Strong acids and strong bases refer to species that completely dissociate to form ions in solution. By contrast, weak acids and bases ionize only partially, and the ionization reaction is reversible. Thus, weak acid and base solutions contain multiple charged and uncharged species in dynamic equilibrium.