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Question: Answered & Verified by Expert
At 277 K, degree of dissociation water is 1×10-7% . The value of ionic product of water is
ChemistryIonic EquilibriumJEE Main
Options:
  • A 3.0×10-14
  • B 3.085×10-15
  • C 1×10-16
  • D 1×10-14
Solution:
2201 Upvotes Verified Answer
The correct answer is: 3.085×10-15
The molar concentration of water

=1000×118=55.5 M

α , the degree of dissociation =1×10-7100

=1×10-9



Kw=Cα×Cα or C2α2

Kw=(55.5)2(1×10-9)2=3.085×10-15

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