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2 years ago

What is the relationship between Ka and Kb with Kw?

2 answers:

lina2011 [118]2 years ago

3 0

The correct answer is ...... The product of Ka and Kb equals the auto-dissociation constant for water. I know its right for sure!

Eduardwww [97]2 years ago

3 0

Answer is: The product of Ka and Kb equals the auto-dissociation constant for water.

Reaction of auto-dissociation for water: H₂O ⇄ H⁺ + OH⁻.

Water dissociates (autoionization) to form hydrogen ions (H⁺) and hydroxide (OH⁻) ions. The protons (H⁺) hydrate as hydroxonium ions( H₃O⁺).

The Kw (the ionic product for water) at 25°C is 1·10⁻¹⁴ mol²/dm⁶ or 1·10⁻¹⁴ M². Concentration of hydrogen ions and hydroxide ions in pure water are the same.

Ka · Kb = Kw; the ionic product of water.

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