Which of the following samples has the greatest density at STP? A) O₂ B) Xe C) CO₂ D) SF₆ E) All of these samples have the same density at STP.

Question

Quizplus · Accepted Answer

Density is mass per unit volume. At STP, all gases occupy the same volume (22.4 L for 1 mole), so the gas with the greatest molar mass will have the greatest density. SF₆ has the highest molar mass among the options given.

Which of the Following Samples Has the Greatest Density at STP