Question

uranium hexafluoride is a solid at room temp, but it boils at 56 degrees celsius. determine the density of uranium hexafluoride at 60 degrees celsius and 745 torr.

Answer 1

P1/T1 = P2/T2
use the equation to find unknown (make sure you match units)

Answer 2

use PV=nRT
you know that n=m/MW and d=m/V

substitute into formula

PV=mRT/MW ... m/V= d = (PxMW))/RT

plug and chug