Question

The following equation shows the equilibrium in an aqueous solution of methylamine: CH3NH2(aq)+H2O(1)⇌CH3NH3+(aq)+OH−(aq)

Part A：Which of the following represents a conjugate acid-base pair?

Part B: What is the conjugate base of HSO3−? Express your answer as a chemical formula.

Part C: What is the conjugate acid of HPO32− ? Express your answer as a chemical formula.

Answer 1

Answer:

Answer to question

A. H2O and OH-

B. SO3 2-

C. HPO322- + H+ ----------> H2PO3-

        H2PO3- <=== Conjugate acid of HPO32-

        H2PO32- + H+ ----------> H3PO3-

       H3PO3- <=== Conjugate acid of H2PO3-