Atomic mass of Oxygen atom is 16 amu. Molecular mass of O2 us 32 amu. Mass of O2 gas is 32 grams / mole. Mass of O2 gas is 1.428 grams/litre at STP. Views Â· View Upvotes.
At vaporâliquid equilibrium, a liquid with individual components in certain concentrations will have an equilibrium vapor in which the concentrations or partial pressures of the vapor components have certain values depending on all of the liquid component concentrations and the temperature.
(boiâ²lÄ­ng) The temperature at which a liquid changes to a vapor or gas. As the temperature of a liquid rises, the pressure of escaping vapor also rises, and at the boiling point the pressure of the escaping vapor is equal to that exerted on the liquid by the surrounding air, causing bubbles to form.