For this reaction, name the reaction type and state the reagent and the conditions required.
State the bond angles in benzene and cyclohexane, and explain your reasoning. Bond angle in benzene ................. Bond angle in cyclohexane .................
Draw a mechanism for benzene reacting with $\text{SO}_3\text{H}^+$. Include every curly arrow and charge needed.
Write an equation to show the formation of the $H_2SO_4$ catalyst.
Suggest suitable reagents and conditions, and name the mechanism, for converting benzenesulfonic acid to 3-dodecylbenzenesulfonic acid. Reagents and conditions. Mechanism.
Give the expression for the acid dissociation constant $K_{a2}$ for the equilibrium $\text{HSO}_4^- \rightleftharpoons \text{H}^+ + \text{SO}_4^{2-}$.
$\text{H}_2\text{SO}_4$ is a strong acid whereas $\text{HSO}_4^-$ is a weak acid. Suggest how the size of the acid dissociation constant for stage 1 compares with $K_{a2}$.
Benzoic acid, $\text{C}_6\text{H}_5\text{CO}_2\text{H}$, is a weak acid. A $0.0250 \text{ mol dm}^{-3}$ solution of benzoic acid has pH $2.90$. Calculate $K_a$ for benzoic acid.