The total pressure of a mixture of non-reacting gases X ( 0 . 6 g ) and Y ( 0 . 45 g ) in a vessel is 740 mm of Hg . The partial pressure of the gas X is mm of Hg . (Nearest Integer) (Given : molar mass X = 20 and Y = 45 g mol - 1 )

Step-by-step solution

Total pressure ( P Total ) = 740   mm of Hg Number of moles of gas X   =   0 . 6 20 Number of moles of gas Y   =   0 . 45 45 Total number of moles =   0 . 03   +   0 . 01   =   0 . 04   mole The partial pressure of the gas X  =  Mole fraction  ×  Total pressure X   =   0 . 03 0 . 04   ×   740   =   555