Answer:
The answer to your question is Ka = 1.99 x 10⁻⁵
Step-by-step explanation:
Data
pKa = 4.7
Ka = ?
Ka is the acid dissociation constant, it measures the dissociation of n acid in aqueous solution. It does not have units.
pKa is a value that helps to indicate the strength of an acid.
Formula
pKa = -log Ka
-Substitution
4.7 = -log Ka
-Solve for Ka
-4.7 = log Ka
antilog (-4.7) = Ka
-Result
Ka = 1.99 x 10⁻⁵