Which of the following samples will have the greatest volume at STP? A) 22 g Ne B) 22 g He C) 22 g O₂ D) 22 g Cl₂ E) All of these samples would have the same volume at STP.

Question

Quizplus · Accepted Answer

At STP (Standard Temperature and Pressure), all gases occupy the same volume per mole, known as molar volume. This value is approximately 22.4 L/mol. Therefore, out of the given options, the gas with the lowest molar mass will have the largest volume. Among the options given, helium (He) has the lowest molar mass, so it will have the greatest volume at STP. Therefore, option B is the correct answer.

Which of the Following Samples Will Have the Greatest Volume