What is the density of UF6 (subscript) gas? What volume would 2.35 moles of this gas occupy? (Assume STP)
Ideal gases occupy 22.4 liters at STP.
I don't know that UF6 is an ideal gas or not but for this purpose I think we must assume that it is.
density = molar mass/22.4 = ??
volume occupied by 2.35 moles = 2.35 moles x (22.4 L/mole) = ??