Latex tutorial to write thesis

A gentleman sent in an email when having difficulties compiling this source file with MiKTeX on Windows 7 due to missing package. After suggesting that he take a look at this post , he mentioned that all he had to do was simply remove the “empty” argument from the fullpage line. I would first suggest taking a look at this post , and then if that doesn’t seem to resolve it, try the second suggestion by changing this:
usepackage{latexsym}
usepackage[empty]{fullpage}
usepackage[usenames,dvipsnames]{color}
usepackage{verbatim}
usepackage[pdftex]{hyperref}
hypersetup{
citecolor=black,%
filecolor=black,%
...

CaSO 4 ⋅ 1 2 H 2 O + 1 1 2 H 2 O ⟶ CaSO 4 ⋅ 2 H 2 O {\displaystyle {\ce {{/2H2O}+1\!1/2H2O->}}}