Density of Gas

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One procedure used to separate the isotopes of uranium to obtain material to construct a nuclear weapon employs uranium compound with the formula UF $_6$ . The compound boils at about 56 $^{\circ}$ C, so at 100 $^{\circ}$ C it is a gas. What is the density of 1.00 mol of UF $_6$ at 100 $^{\circ}$ C if the pressure of the gas is 0.974 atm. (MM of U = 352.0 g/mol)

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