Draw the products of the acid-base reaction shown below and identify the acid, base, conjugate acid, and conjugate base.

Propose the most probable arrow-pushing mechanism for the Lewis acid-base reaction of bromine and ferric bromide. Indicate the Lewis acid and the Lewis base.

Label the acid, base, conjugate acid, and conjugate base in the given reaction using the convention that the acid and base are on the left side of the equation.

Consider the following acid-base reaction:

H₂C=CH₂ + HBr ⇌ H₃C—CH₂⁺ + Br⁻

1. For all the reactants and products, draw Lewis structures.
2. Identify the nucleophile (base) and electrophile (acid) in the reaction.
3. Draw curved arrows to show the flow of electrons.
4. Determine if the reaction can be termed a Brønsted-Lowry acid-base reaction.

Which between Ca²⁺ and Li⁺ is the harder Lewis acid? Justify your answer.

Rank the conjugate bases of the following molecules from most stable to least stable.

Hexan-1-ol is oxidized to hexanal using PCC. However, some over-oxidation occurred, and some hexan-1-ol was oxidized to hexanoic acid.

(i) Provide a step-by-step process of purifying hexanal using acid-base extraction.

(ii) Which substance in the reaction mixture cannot be separated from hexanal using acid-base extraction? How can the two be separated?