Proton Transfer Reactions · Paper 1 — Free Chemistry HL Practice Questions

In the reaction between aqueous ammonia and ethanoic acid, ammonia acts a Brønsted–Lowry base. Which species acts as the Brønsted–Lowry acid in this reaction, and what is the conjugate acid formed?

According to Brønsted-Lowry theory, when propanoic acid ($\text{CH}_3\text{CH}_2\text{COOH}$) acts an acid in aqueous solution, which species its conjugate base?

In the reaction between hydrogen chloride gas and water, $\text{HCl} + \text{H}_2\text{O} \rightarrow \text{H}_3\text{O}^+ + \text{Cl}^-$, what is the role of water according to Brønsted–Lowry theory?

In the reaction $\text{H}_2\text{SO}_3\text{(aq)} + \text{H}_2\text{O(l)} \rightleftharpoons \text{HSO}_3^-\text{(aq)} + \text{H}_3\text{O}^+\text{(aq)}$, a student claims that $\text{H}_2\text{O}$ acts a Brønsted–Lowry base. Which statement best justifies this claim?