Chemistry Vapour pressure of water at 100 Options:A. 55 mm HgB. 760 mm HgC. 355 mm HgD. 1489 mm HgView AnswerB. 760 mm Hg Continue Reading Previous: Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?Next: Estimation of amounts of different components in a sample is________________?