1. The problem statement, all variables and given/known data A balloon filled with 0,78 liters of air is placed in liquid nitrogen. After a while the ball is taken out of the liquid nitrogen and weighed immediately, the mass is 2,27 grams. After the ball has grown to its regular size it weighs 1,26 grams. What value does the experiment give as the density of air? 3. The attempt at a solution 2,27-1,26= 1,01 grams (weight of contents) 1,01 grams = 0,00101 kg 0,78 L = 0,00078 m3 Density = mass/volume = 0,00101/0,00078 = 1,29 kg/m3 Will be very thankful for any/all help!