Question

Which statement best describes the conductivity of weak electrolytes, such as weak acids and bases?
A) Weak electrolytes do not dissolve in water and can not conduct electricity.
B) Weak electrolytes dissolve and partially dissociate in water providing charged ions to conduct electricity.
C) Weak electrolytes dissolve and completely dissociate in water providing charged ions to conduct electricity.
D) Weak electrolytes dissolve and does not dissociate in water providing no charged ions to conduct electricity.

Answer 1

B. Weak electrolytes are weak because they only partially dissociate into ions in water.

Answer 2

Answer: B) Weak electrolytes dissolve and partially dissociate in water providing charged ions to conduct electricity.

Explanation: Weak electrolytes are those substances which do not dissociate completely when dissolved in water. They dissociate but then associate back and thus their dissociation is shown by an equilibrium sign. Example: $CH_3COOH$

$CH_3COOH\rightarrow CH_3COO^-+H^+$

The charged species formed helps in the conduction of electricity.

Strong electrolytes are those substances which dissociate completely when dissolved in water. Their dissociation is shown by a forward arrow. Example: $NaOH$

$NaOH\rightarrow Na^++OH^-$

The charged species formed helps in the conduction of electricity.