alleryHow many ions are produced per formula unit when $[Cr(NH_3)_6]Cl_3$ is dissolved in water?
A1
B2
C4 (one $[Cr(NH_3)_6]^{3+}$ + three $Cl^-$)
D7
Answer & Solution
Correct answer: C. 4 (one $[Cr(NH_3)_6]^{3+}$ + three $Cl^-$)
**Ionisation:** $[Cr(NH_3)_6]Cl_3 \to [Cr(NH_3)_6]^{3+} + 3Cl^-$. Total **4 ions**.
Conductance measurements gave Werner his clue to distinguish coordination spheres.
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