5 A mixture of three gases has a total pressure of 1380 mm Hg at 298 K. The mixture is analysed and is found to contain 1.27 mol carbon dioxide, 3.04 mol carbon monoxide, and 1.50 mol argon. What is the partial pressure of argon ? O 356 mm Hg 8020 mm Hg O 0.258 mm Hg O 5345 mm Hg 2 pts 301 mm Hg