1. The actual value for absolute zero in degrees Celsius is −273.15. Use the formula below to determine your percent error for both gas samples.
2. If the atmospheric pressure in the laboratory is 1.2 atm, how many moles of gas were in each syringe? (Hint: Choose one volume and temperature pair from your data table to use in your ideal gas law calculation.)

I literally have no clue what this is asking for. The graphs are "best-fit line" graphs that were made from the data table (all are attached including the instructions about making the graph)