Multiple choice

According to conductance measurement, how many ions are present in a dilute solution of CoCl3.6NH3?

  1. 2

  2. 4

  3. 6

  4. 9
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

CoCl3·6NH3 is [Co(NH3)6]Cl3. In solution, it dissociates into [Co(NH3)6]3+ cation and 3 Cl- anions, giving 4 total ions. Conductance measurements reveal this ionic composition, showing the coordination sphere remains intact.

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