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# -logka=4.7 calculate

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Log (k_a)=-4.7
-log(k_a)=4.7
-log(k_a)=0 - log(k_a)=log(1)-log (k_a)=
=log(1/k_a)=4.7
Raise both members of the last equality to the power of 10
10^(log(1/k_a))=1/k_a=10^(4.7)
k_a=10^(-4.7)=1.99526*10^(-5)

Posted on Mar 23, 2014

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## Related Questions:

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