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A mixture of neon and carbon dioxide gases, at a total pressure of 750 mm Hg, contains 3.74 grams of neon and 4.40 grams of carbon dioxide. What is the partial pressure of each gas in the mixture? PNe mm Hg mm Hg PcO2 = A mixture of helium and neon gases contains helium at a partial pressure of 389 mm Hg and neon at a partial pressure of 305 mm Hg. What is the mole fraction of each gas in the mixture? = X XNe = What volume of hydrogen gas is produced when 65.9 g of iron reacts completely according to the following reaction at 25 C and 1 atm? iron (s) + hydrochloric acid(aq)iron(II) chloride (aq) + hydrogen(9) liters hydrogen gas What volume of hydrogen gas is produced when 91.5 g of iron reacts completely according to the following reaction at 25 C and 1 atm? iron (s) + hydrochloric acid(aq)iron(II) chloride (aq) + hydrogen (9) liters hydrogen gas