An environmental chemist sampling industrial exhaust gases from a coal-burning plant collects a CO₂-SO₂-H₂O mixture in a 21-L steel tank until the pressure reaches 850. torr at 45°C.
(b) If the SO₂ concentration in the mixture is 7.95X10³ parts per million by volume (ppmv), what is its partial pressure? [Hint: ppmv = (volume of component/volume of mixture) X 10⁶.]