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The aqueous 0 .01   M of [ C r ( N H 3 ) 6 ] 2 [ C o ( N H 3 ) ( N O 2 ) 5 ] 3 is expected to have Δ T f equal to Given: K f of H 2 O is 1 .86   K   kg   mol − 1 .

Options

  1. A0.0186
  2. B0.0372
  3. C0.0558
  4. D0.093.

Correct answer

D. 0.093.

Step-by-step solution

Δ T f = i × m × K f = 5 × 0.01 × 1 . 86 = 9.30 × 0.01 = 0.0 93

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