Phosphine gas oxidizes spontaneously on exposure to air, as represented by: 2 PH3(g) + 3 O2(g) P2O3(s) + 3 H2O(g) What volume of oxygen gas, at 700 mmHg and 27 C, would be consumed in the formation of 33.0 g of P2O3 by this process? (P:31 g/mol, 0:16 g/mol, R:0.082 Latm/molk)