Ionization In Solution
A 1.0 L solution contains 0.010 mol of [Co(NH3)6]Cl3 and it dissociates completely. The concentration of Cl− ions is:
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About This Question
- Subject
- chemistry
- Chapter
- coordination compounds
- Topic
- ionization in solution
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
0.030 mol L−1
Because three chloride ions are outside the coordination sphere, each mole of [Co(NH3)6]Cl3 gives 3 moles of Cl− on dissociation. So moles of Cl− = 0.010 × 3 = 0.030 mol. In 1.0 L, concentration is 0.030 mol L−1.
This medium difficulty chemistry question is from the chapter coordination compounds, covering the topic of ionization in solution. It appeared in the 2025 exam.
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