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2 cards from this section. Quick, good the night before a test.
What does Kb represent?
Think of what happens when a base dissolves in water.
Which base has a higher strength: one with Kb = 2.0 or Kb = 0.0002?
Recall that higher Kb indicates greater dissociation.
What does a higher Kb indicate?
Think about the base’s ability to affect pH.
True or False: The relationship Kb × Ka = Kw holds true for all conjugate acid-base pairs.
Consider what Kw represents.
Calculate the Kb for a weak base if you find 3% of it dissociates in a 0.2 M solution.
Start by determining the [OH-] from the percentage dissociated.
If a base has Kb = 9.0 × 10⁻⁶, what is Ka for its conjugate acid?
Use the Kw value at 25 °C to find Ka.
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