07 September 2007
Chemistry Noticeboard ChallengeFor those who have sent in their
Chemistry Noticeboard Challenge to Mr Lin's email account
(Question: Textbooks often place the limits of the pH scale at 0-14.Is this true?Can there be pH that is less than zero?) , take note that his email address is
lin.kuantai@vjc.sg and not
lin.kuantai@gmail.com An Qi