1. Über isomere Platinverbindungen organischer Sulfide
2. \documentclass{article}\pagestyle{empty}\begin{document}$$ \frac{{\begin{array}{*{20}c} {0.0063\,{\rm g\, Substanz}} \hfill \\ {\begin{array}{*{20}c} {0.0072\,\,{\rm g}} & {,,} \\\end{array}} \hfill \\\end{array}}}{{\begin{array}{*{20}c} {{\rm Mittelwert}:{\rm}0.0068\,{\rm g\, Substaz}} \hfill \\ \end{array}}} $$\end{document}
3. 1865 von Lang 3 \documentclass{article}\pagestyle{empty}\begin{document}$$ [{\rm Pt}{\rm.\,4\, NH}_{\rm 3}]{\rm Pt(NO}_{\rm 2} {\rm)}_{\rm 4} + {\rm K}_2 {\rm PtCl}_{\rm 4} = [{\rm Pt}{\rm.\,4\, NH}_{\rm 3}]{\rm PtCl}_{\rm 4} {\rm \,+\, K}_{\rm 2} {\rm Pt(NO}_{\rm 2} {\rm)}_{\rm 4}. $$\end{document}