If an unknown solution has low pKa value,it can be said with certainty that it is
A) a weak acid.
B) a strong acid.
C) pure water.
D) a nonpolar solution.

Question

Quizplus · Accepted Answer

A low pKa value indicates a strong acid, meaning that it will donate protons readily in water. Weak acids have higher pKa values. Pure water has a pKa of 15.7, which is not considered low. Nonpolar solutions do not have a pKa value as they do not ionize in water.

If an Unknown Solution Has Low PKa Value,it Can Be