1 Count the number of different kinds of atoms and calculate what percentage of the molecule they compose. Use the following formula to calculate percentage. Part Whole x 100 = * Hint: your percentage should add up very close to 100% Element Symbol Number Percentage Carbon H Hydrogen Nitrogen Oxygen N zo Total 2. Prepare a plegraph representing the percentage of each kind of atom in the above molecule. Label each section as to what type of atom and what percentage of the whole it represents 90 D 459 A6 In this job you will learn to use, discuss, and identify various chemical compounds, most of which are organic. The molecular composition of caffeine is shown in the following structural formula. Ha. N CH, N. C-H N N CH, Caffeine oculo