Question: What mass of P4(s) is required to completely consume 25L of H2(g) at 27 degrees Celcius and 0.976 atm in the presence of excess oxygen. Molar mass of P4 given at 123.88 g/mol. Molar mass of H2 given 2.02 g/mol.
P4(s) + 6H2(g) + 8O2(g) -> 4H3PO4(s)