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Question: Answered & Verified by Expert
If 0.561 g of KOH is dissolved in water to give 200 mL of solution at 298 K. Calculate the concentrations of potassium, hydrogen and hydroxyl ions. What is its pH?
ChemistryIonic EquilibriumNEET
Options:
  • A [K+] = 0.05 M, [H+] = 0.01 M, [OH-] = 0.01 M, pH = 12.00
  • B [K+] = 0.02 M, [H+] = 0.00 M, [OH-] = 0.02 M, pH = 1.70
  • C [K+] = 0.01 M, [H+] = 0.00 M, [OH-] = 0.02 M, pH = 2.00
  • D [K+] = 0.02 M, [H+] = 0.01 M, [OH-] = 0.01 M, pH = 2.00
Solution:
2398 Upvotes Verified Answer
The correct answer is: [K+] = 0.05 M, [H+] = 0.01 M, [OH-] = 0.01 M, pH = 12.00
Correct Option is : (A)
[K+] = 0.05 M, [H+] = 0.01 M, [OH-] = 0.01 M, pH = 12.00

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