Use the References to access important values if needed for this question. A mixture of hydrogen and helium gases, at a total pressure of 629mmHg, contains 0.207grams of hydrogen and 0.524 grams of helium. What is the partial pressure of each gas in the mixture? PH2=PBeHe=mmHgmmHg A mixture of argon and oxygen gases contains argon at a partial pressure of 558mmHg and oxygen at a partial pressure of 286mmHg. What is the mole fraction of each gas in the mixture? Use the References to access important values if needed for this question. A mixture of nitrogen and helium gases at a total pressure of 790mmHg contains nitrogen at a partial pressure of 452mmHg. If the gas mixture contains 4.00grams of nitrogen, how many grams of helium are present? Mass=gHe