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 sample contains the largest number of atoms? A) O₂ contains the largest number of atoms. B) CO₂ contains the largest number of atoms. C) NH₃ contains the largest number of atoms. D) All three gas samples contain an equal number of atoms.

Question

Quizplus · Accepted Answer

To determine which gas sample contains the largest number of atoms, we need to compare the number of atoms in each molecule. The subscripts in the chemical formulas tell us the number of each type of atom in the molecule. - O₂ contains 1 oxygen atom, 1 sulfur atom, and 12 carbon atoms. - CO₂ contains 1 carbon atom, 1 oxygen atom, 1 sulfur atom, and 12 hydrogen atoms. - NH₃ contains 1 nitrogen atom, 1 hydrogen atom, and 13 sulfur atoms. Counting up the total number of atoms in each molecule, we get: - O₂: 1 + 1 + 12 = 14 atoms - CO₂: 1 + 1 + 1 + 12 = 15 atoms - NH₃: 1 + 1 + 13 = 15 atoms Therefore, the gas sample that contains the largest number of atoms is NH₃. Answer choice C is the correct answer.

A Student Has Three Samples of Gases That Have Equal