Question

A lab director asks two students, Lydia and Damien, to each select a bottle of a concentrated weak base. When they reach the cabinets, they find different chemical solutions with varying concentrations. All of the options are bases. Which bottles should they choose?

Lydia should select the bottle of___________ . Damien should select the bottle of _________.

Answer 1

A weak base is one that only dissociates into ions partially in solution, providing OH- ions to the medium. Weak bases are weak electrolytes.

a few common weak bases are ammonia and pyridine, whose reactions with water are

NH3 (aq) + H2O (l) ⇄ NH4+(aq) + OH-(ac)

C5H5N(aq) + H2O(l) ⇄ C5H5NH+(aq) + OH-(aq)

so, Lydia and Damien could have taken a bottle of ammonia and a bottle of pyridine.