Для окисления 4,08 г AlHal₃ в кислой среде израсходовано 15 мл 0,4 М раствора KMnO₄. Найдите соль.

  1. AlBr₃
  2. AlF₃
  3. AlI₃
  4. AlCl₃

📝 Detailed explanation

n(KMnO₄) = 0,006 моль; ē = 0,03 моль. Hal⁻ → Hal⁰: n(Hal⁻) = 0,03 моль ⇒ n(AlHal₃) = 0,01 моль ⇒ M = 408 ⇒ AlI₃ (M=408).
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