Question

We have three aqueous solutions of $NaCl$ labelled as $(A),(B)$ and $(C)$ with concentration of $0.1\, M,\, 0.01\, M$ and $0.001\, M$, respectively. The value of van't Hoff factor of these solutions will be in order

• A. $i_{A} < i_{B} < i_{C}$
• B. $i_{A}>i_{B}>i_{C}$
• C. $i_{A}=i_{B}=i_{C}$
• D. $i_{A} < i_{B} > i_{C}$

Answer 1

Answer: (C)

$NaCl$ is a strong electrolyte. For strong electrolytes, the value of '$i$' remain same on dilutions, as they completely dissociate on dilutions.