Independent variable would be type of music played
look up results...
(most likely) an article from NASA
the results are considered more reliable :) if you would like an explanation on these answers I would be happy to help
PV = nRT
n = m × 1/mm = 2.96g × 1moles/16g
n = 0.185 moles
P = nRT/V
P = (.185)(.0821)(313)/(2.2)
P = 4.754/2.2 = 2.161 atm