A pH scale shows pH values of 0 through 14 with a pH of 7 being neutral, lower numbers being more acidic, and higher numbers being more basic. An interactive slider bar on the pH scale can be dragged to whole number pH values.
pH value
pH
=
-log[H
^{+}
]
0
= -log
[1.0]
(1 × 10
^{0}
)