What is the difference between Ka, Kb, and Kw?
Also, what is the difference between Ka1 and Ka2?
Do we need to calculate Ka and Kb in the final?
Ka. Kb, Kw
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Re: Ka. Kb, Kw
What is the difference between Ka, Kb, and Kw?
Also, what is the difference between Ka1 and Ka2?
Do we need to calculate Ka and Kb in the final?
Ka * Kb = Kw = 1.0 x 10^-14
pKa + pKb = pKw = 14
Ka1 and Ka2 only appear in polyprotic acids (i.e. H2so4). Ka1 is the dissociation constant when 0 H+ are lost, and Ka2 is the disc. when one H+ is lost.
Dr. Lavelle has mentioned we won't need to know how to calculate Ka and Kb extensively, but remember that strong acids and bases dissociate completely and try and think about how this will affect the Ka/Kb.
Also, what is the difference between Ka1 and Ka2?
Do we need to calculate Ka and Kb in the final?
Ka * Kb = Kw = 1.0 x 10^-14
pKa + pKb = pKw = 14
Ka1 and Ka2 only appear in polyprotic acids (i.e. H2so4). Ka1 is the dissociation constant when 0 H+ are lost, and Ka2 is the disc. when one H+ is lost.
Dr. Lavelle has mentioned we won't need to know how to calculate Ka and Kb extensively, but remember that strong acids and bases dissociate completely and try and think about how this will affect the Ka/Kb.
Re: Ka. Kb, Kw
For strong acids, you just calculate pH, not Ka or Kb.
Ka is equal to the concentration of the products divided by the concentration of the reactants, so unless you are given those, you won't have to calculate it. Then, finding pKa is the negative log of it. pKa + pKb = 14
Ka is equal to the concentration of the products divided by the concentration of the reactants, so unless you are given those, you won't have to calculate it. Then, finding pKa is the negative log of it. pKa + pKb = 14
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