Acetone has a pKa value of 19.2. The pKa value of a chemical is a measure of its acidity and is based on the constant Ka, which is known as the acid dissociation constant. The pKa is found through the formula pKa = -log(Ka).
The related pKb value for acetone is -5.2. The pKb value measures the basicity of a substance and is found by subtracting the pKa value from 14. Acetone is represented by the chemical formula C3H6O and has a molar mass equal to about 58.08 grams per mole. It is a colorless liquid with a pungent odor. Acetone is an organic compound.