The initial pH of the solution before the addition of the acid is 13.48.
In chemistry, biology, and environmental science, the pH scale is frequently used to characterize the acidity or alkalinity of various materials, ranging from common household solutions to biological systems and natural waters.
The pH scale ranges from 0 to 14, with lower pH values indicating acidity, higher values indicating alkalinity (basicity), and a pH of 7 considered neutral.
We know that;
pOH = - log[
]
pOH = -log(0.3)
= 0.52
pH = 14 - 0.52
= 13.48