If Ka value is 10-6, then Kb value is:
Correct answer: B. 10-8
- A. 10-4
- B. 10-8
- C. 10-6
- D. 10-10
Explanation
As we know that Ka x Kb = KwKw = 10-14Ka = 10-610-6 x Kb = 10-14Kb = 10-14 / 10-6Kb = 10-14 - (-6)Kb = 10-8
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About Bronsted-Lowry and Lewis Concepts
The Brønsted-Lowry concept defines acids as proton donors and bases as proton acceptors, producing conjugate acid-base pairs. The Lewis concept extends the idea to electron-pair acceptors and donors, so compounds such as BF3 and NH3 can be treated as acid and base even without proton transfer, unlike the Arrhenius definition.
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