pKa and Ka
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pKa and Ka
What exactly is the difference between pKa and Ka? what does each represent and how do you calculate each?
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Re: pKa and Ka
The acid dissociation constant, Ka, is a quantitative indicator of the strength of an acid in a solution. Because Ka is often an extremely large number, chemists simplify it to a smaller number, called pKa, for convenience. Ka and pKa are the same thing expressed in different ways. Ka follows the basic equation of [H+][A-]/[HA], and pKa=-log[H+].
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Re: pKa and Ka
Ka tells you how well an acid dissolves in solution, but when simplified into pKa, the smaller the value is the stronger the acid, as strong acids dissociate more in solution.
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