Conductivity Ratio of Ionic Solutions
The electrical conductivity of an aqueous solution is proportional to the product of the number of ions per formula unit and their relative ion mobility. Data for NaCl and CaCl₂ are provided in the table.
| Compound | Number of Ions per Formula Unit | Relative Ion Mobility Factor |
|---|---|---|
| NaCl | 2 | 1.00 |
| CaCl₂ | 3 | 0.80 |
Based on this information, what is the ratio of the conductivity of a CaCl₂ solution to that of an NaCl solution, assuming the solutions have the same molarity?
A
Approximately 1.2 times greater
B
Approximately equal
C
Approximately 1.6 times greater
D
Approximately 0.8 times as high
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