IUPAC Green Book[3] in that, in terms of its definition [4], pH = âlg a. H. it involves a single ion quantity, the activity of the hydrogen ion, which is immeasurable by any ther-. modynamically valid method and requires a convention for its evaluation.
He began developing SpongeBob SquarePants into a television series in 1996 upon the cancellation of Rocko's Modern Life, and turned to Tom Kenny, who had worked with him on that series, to voice the title character.
SpongeBob Characters. SpongeBob SquarePants. SpongeBob SquarePants is a main fictional character in the animated television series SpongeBob SquarePants. He is voiced by Tom Kenny and first appeared on television in the series' pilot episode Help Wanted on May 1, 1999.