Unfortunately, the data you provided is not sufficient to set up a detailed lecture. C9H2O8 is not the formula of a specific or common chemical compound. In order to provide accurate and useful information, we need to know exactly which compound you are referring to.
However, if you want to teach about compounds with a general molecular formula like CxHyOz, you could introduce students to concepts such as atoms, molecules, ions, atomic mass, physical and chemical properties, chemical equations, and how to prepare compounds in the laboratory and industrial scale.
These compounds could include organic compounds such as glucose (C6H12O6), acetic acid (C2H4O2), or inorganic compounds such as water (H2O), carbon dioxide (CO2).
All of this knowledge can help students better understand chemistry, as well as analytical and problem-solving skills in this field.