Science questions not covered in Chem 14A and 14B. Try to limit questions to chemistry (inorganic chemistry, physical chemistry, organic chemistry, biophysical chemistry, biochemistry, materials science, environmental chemistry).
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When you have log10(a)=c, to get to exponential form it would be 10^c= a. Thus, since the pka is c in this example, raise 10 to whatever the pka is and it should give you ka. Someone might want to double check me on that one though because its been a while since I've done that kind of math
Because -log(Ka)=pKa, you can rearrange this to get 10^-pKa=Ka. Plug in the pKa and you can get the Ka. You can always just rearrange the original equation to solve for Ka. I hope this helps!
Mrudula Akkinepally wrote:Hello everyone!
I know that pka is the negative log of ka, but how do we go from pka to ka?
Thank you :)
Hi! To calculate Ka from pKa you would use this: Ka=10^(-pKa)! Hope this helps. I would recommend reviewing log rules, it really helped me understand this so that it's not just another equation to memorize.
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