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"134.6 L

Explanation:

Molar mass of mercury "= 200.59 g/mol"= 200.59 g/mol

Moles of mercury= "200 g"/"200.59 g/mol" = "0.997 mol"=200 g200.59 g/mol=0.997 mol

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

"V" = "nRT"/"P"V=nRTP

color(white)("V") = "0.997 mol × 0.0821 L atm / (mol K) × 822 K"/"0.500 atm"V=0.997 mol × 0.0821 L atm / (mol K) × 822 K0.500 atm

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