The pH scale is used to determine the hydrogen ion concentration or to comment on the acidity and basicity of any solution
The pH stands for potenz of hydrogen
it is calculated as
pH = -log[H+]
The pH scale was developed by Sorensen
According to the scale,
a solution is called acidic if pH is less than 7
a solution is called basic if pH is greater than 7
a solution is called neutral if pH is equal to 7.
As pH of pure of water is considered to be 7 while as HCl is acidic so its pH will be less than 7.
The exact pH of HCl will depend upon it concentration
so as compared to HCl, the pH of water will be more.