Question

Each of the following reactions shows a solute dissolved in water. Classify each solute as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. C(l)→C(aq) AB(aq)⇌ A+(aq)+B−(aq) MN(aq)→M+(aq)+N−(aq) XZ(s)→X+(aq)+Z−(aq) P(s)→P(aq)

Answer 1

Strong electrolyte solutes are MN and XY.

Weak electrolyte solute is AB.

Non-electrolyte solutes are C and P.

Explanation :

Strong electrolyte : It is defined as the species that can completely dissociates into ions in its aqueous solution.

Weak electrolyte : It is defined as the species that is partially dissociates into ions in its aqueous solution.

Non-electrolyte : It is defined as the species that does not dissociates into ions in its aqueous solution.

As we are given the following reactions. Now we have to determine the solute as a strong electrolyte, a weak electrolyte, or a non-electrolyte.

(1)
`C(l)\rightarrow C(aq)`

In this reaction, there is no dissociation into ions. So, It is a non-electrolyte.

(2)
`AB(aq)\rightleftharpoons A^+(aq)+B^-(aq)`

In this reaction, the partial dissociation into ions and equilibrium arrow represent the incomplete dissociation. So, it is a weak electrolyte.

(3)
`MN(aq)\rightarrow H^+(aq)+CN^-(aq)`

In this reaction, the complete dissociation into ions and only onside arrow represent the completely dissociated. So, it is a strong electrolyte.

(4)
`XZ(s)\rightarrow X^+(aq)+Z^-(aq)`

In this reaction, the complete dissociation into ions and only onside arrow represent the completely dissociated. So, it is a strong electrolyte.

(5)
`P(s)\rightarrow P(aq)`

In this reaction, there is no dissociation into ions. So, It is a non-electrolyte.