A decimolar solution of potassium ferrocynamide. is 50% dissociated at 300 K .calculate the value of van't hoof factor for potassium ferrocynamide.
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12th
Chemistry
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Colligative Properties and Determination of Molar Mass
A decimolar solution of pot...
CHEMISTRY
A decimolar solution of potassium ferrocyanide is 50% dissociated at 300 K. Calculate the osmotic pressure of the solution.
November 22, 2019avatar
Bagkiashree Tbhat
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ANSWER
K
4
[Fe(CN)
6
]→4K
⊕
+[Fe(CN
6
]
4−
Initial 1 0 0
At eq. 1−α 4α α
Total moles at equilibrium =1−α+4α+α=1+4α
α=50%=0.5 (given)
∴i=
1
1+4α
=1+4×0.5=3
Using the formula, π=iMRT
=3×0.1×0.082×300=7.38 atm.
Answer:
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Explanation:
K
4
[Fe(CN)
6
]→4K
⊕
+[Fe(CN
6
]
4−
Initial 1 0 0
At eq. 1−α 4α α
Total moles at equilibrium =1−α+4α+α=1+4α
α=50%=0.5 (given)
∴i=
1
1+4α
=1+4×0.5=3
Using the formula, π=iMRT
=3×0.1×0.082×300=7.38 atm.
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