Ph and Pka
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Re: Ph and Pka
If you are given the pKa, you would have to use the ICE table to find the concentration of [H3O+] at equilibrium and then take the -log of that value to find pH.
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Re: Ph and Pka
Going from pH to pKa, take 10^-(pH) to get the hydronium ion concentration. Use that in your ICE table (it will end up being x) and solve for Ka. Take the negative log of Ka, and you have your pKa
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Re: Ph and Pka
If you get pH, you can easily get the concentration of H3O+, and then using the Ice Table you can calculate all the other values going into the pKa equation and calculate the value of pKa itself.
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Re: Ph and Pka
pKA usually deals more with weak acids which cannot dissociate fully as opposed to strong acids where we can automatically calculate the pH because we know it dissociates completely.
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