hw10solution_pdf

# Be more than 8 times higher as the osmotic pressure

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be more than 8 times higher as the osmotic pressure is directly proportional to the total concentration of all solutes. 025 4.0points What is the concentration of Fe 2+ ion in a 0.100 molar solution of K 4 Fe(CN) 6 ? K d for Fe(CN) 4 - 6 is 1 . 3 × 10 - 37 . 1. 2 . 23 × 10 - 6 M 2. 9 . 31 × 10 - 8 M 3. 1 . 34 × 10 - 5 M 4. 5 . 00 × 10 - 6 M 5. 1 . 16 × 10 - 6 M 6. 8 . 33 × 10 - 7 M correct 7. 6 . 09 × 10 - 8 M Explanation: K d = [Fe][CN - ] 6 / [Fe(CN) 4 - 6 ] 1 . 3 × 10 - 37 = x (6 x ) 6 /. 1 1 . 3 × 10 - 38 = 46656 x 7 2 . 786 × 10 - 43 = x 7 x = 8 . 33 × 10 - 7 M which is equal to [Fe 2+ ]
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