Ionization of Water

For a TI 83 Enter (-) ( LOG ( 1 ( 2nd ( EE ( (-) ( 7 ( ENTER and the answer should be 7 NOTE: If you are using a DAL or a TI 83 calculator and the number you want to find the pH of is the answer to a an ongoing calculation, leave the answer to your calculation in the calculator and press (-) or +/- ( log ( 2nd ( ANS ( ENTER ( or =). ................
................