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Kw = Ka x Kb, so Ka and Kb are inversely proportional meaning as one increases the other decreases. This makes sense when thinking about the relative values of Ka and Kb for the strength of acids and bases as a strong acid will have a very high Ka resulting in a low Kb because it is not very basic and vice versa.
Kristina Rizo 2K wrote:This is irrelevant to the stated question, but does anyone know if we can still turn in chemical equilibrium hw questions for week 2? Or does it have to be acids and bases?
Since we still covered chemical equilibrium this week, you can turn in problems from that section as long as they are different than the ones you turned in last week!
This was in reference to the ionization constant for water, Kw, because the addition of both reactions in the example (the addition of water to ammonium and the addition of water to ammonia) resulted in the concentration of hydronium ions multiplied by the concentration of hydroxide ions (derived from Ka x Kb). Since Kw is a constant at a given temperature, the concentrations of hydronium and hydroxide are inversely proportional and as one increases, the other decreases.
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