Mercury vapor contains Hg atoms. What is the volume of 200. g of mercury vapor at 822 K and 0.500 atm?

1 Answer
Jun 20, 2018

"134.6 L"

Explanation:

Molar mass of mercury "= 200.59 g/mol"

Moles of mercury= "200 g"/"200.59 g/mol" = "0.997 mol"

Assuming it shows ideal behaviour, from ideal gas equation "PV = nRT"

"V" = "nRT"/"P"

color(white)("V") = "0.997 mol × 0.0821 L atm / (mol K) × 822 K"/"0.500 atm"

color(white)("V") = 134.6\ "L"