Discovery of ph
The concept of pH was first introduced by the Danish chemist Søren Peder Lauritz Sørensen at the Carlsberg Laboratory in 1909 and revised to the modern pH in 1924 to accommodate definitions and measurements in terms of electrochemical cells.
Sorensen
correct
In 1909 Sørensen, a Danish chemist, introduced the concept of pH as a convenient way of expressing acidity.
Sorensen
sarensan
