Answer
d = 6.8 g/L
Work Step by Step
T = 25 + 273.15 = 298.15 K, P = 2.6 atm, M (SO2) = 64.06 g/mol
d = PM/RT
d = 2.6 x 64.06 / 0.08261 x 298.15 = 6.8 g/L
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