Your beighbor has a cute Bichon-Frise puppy. assume air is 80% Nitrogen and 20% Oxygen.( nitrogen atomic weight is 14 and Oxygen atomic weight is 16) you have inflated your bike tire to 700Kpa and the tire has a volume of 2.0 liters.( one liter =1000 cubic centimeters) and the temperature is 18C.
a. how many grams of air does the tire contain?
b. you suddenly realize that your tire can't exceed a pressure of 500Kpa when the temperature is 28C. How many grams of air should be removed so that your tire is safe?