A mixture of hydrogen and oxygen gases is explosive if the oxygen content is more than . In which of the following oxygen-hydrogen mixtures is the oxygen content closest to this threshold without exceeding it?
A gas mixture used for anesthesia contains 2.83 mol oxygen, , and 8.41 mol nitrous oxide, . The total pressure of the mixture is 192 kPa.
What are the mole fractions of and ?
What are the partial pressures of and ?