A student has three samples of gases that have equal volume. The three gases are O₂, CO₂, and NH₃; all the gases are at the same temperature and pressure. Which of the following samples contains the largest number of molecules? A) O₂ contains the largest number of molecules. B) CO₂ contains the largest number of molecules. C) NH₃ contains the largest number of molecules. D) All three gas samples contain an equal number of molecules.

Question

Quizplus · Accepted Answer

According to Avogadro's law, equal volumes of gases at the same temperature and pressure contain an equal number of molecules. Therefore, all three gas samples contain an equal number of molecules.

A Student Has Three Samples of Gases That Have Equal