Air was bubbled at a rate of 30.0 L/min through a trap containing 75 mL of 1%
2O2 (H2O2 + SO2 → H2SO4). After 10.0 min, the H2SO4 was titrated with 11.70 mL of 0.00197 M NaOH.
Calculate concentration of SO2 in parts per million (that is, mL SO2/106 mL air) if the density of SO2 is
0.00285 g/mL.
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