How to Calculate pH

Topics covered in this video:

How to Calculate Kw = the water equilibrium constant = 1 x 10^-14
when pH = 7, it means a neutral solution and [H3O+] = [OH-]
when pH is greater than 7, it means a basic solution and [H3O+] less than [OH-]
when pH is less than 7, it means an acidic solution and [H3O+] greater than [OH-]
Calculating pH using pH = -log [H3O+]
Calculating [H3O+] using [H3O+] = 10-pH