Q13.89P - Chemistry: Molecular Nature Of Matter And Change

Question

Question: Classify the following substances as strong electrolytes, weak electrolytes, or non-electrolytes:

(a) Sodium permanganate (NaMnO₄)

(b) Acetic acid (CH₃COOH)

(c) Methanol (CH₃OH) 

(d) Calcium acetate [Ca(C₂H₃O₂₎₂]

Step-by-Step Solution

Answer

Answer

 

(a) Sodium permanganate $\left(NaMN{O}_4\right)$ is a strong electrolyte

(b) Acetic acid $\left(C{H}_{3}COOH\right)$ is a weak electrolyte

(c) Methanol $\left(C{H}_{3}OH\right)$ is non electrolyte

(d) Calcium acetate $\left[\mathbf{Ca}{\left({\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{3}}{\mathbf{O}}_{\mathbf{2}}\right)}_{\mathbf{2}}\right]$ is a strong electrolyte

Step 1: sodium permanganate

 

Sodium permanganate  is a strong electrolyte (NaMnO₄) because it almost completely ionizes or dissociates in a solution. It effectively conducts electricity.

 

Step 2: Acetic acid

 

Acetic acid is a weak electrolyte because it only partially ionizes in a solution. They are weak conductor of electricity

Step 3: Methanol

 

Methanol is a non-electrolyte because it does not have any distinct ionic form and do not ionize in a solution. They are poor conductors of electricity.

Step 4: calcium acetate

 

Calcium acetate$\left[\mathbf{Ca}{\left({\mathbf{C}}_{\mathbf{2}}{\mathbf{H}}_{\mathbf{3}}{\mathbf{O}}_{\mathbf{2}}\right)}_{\mathbf{2}}\right]$  is a strong electrolyte because it almost completely ionizes or dissociates in a solution. It is a good conductor of electricity.