Which of the following samples contains the greatest number of atoms A) 100 g of Pb B) 2.0 mole of Ar C) 0.1 mole of Fe D) 5 g of He E) 20 million O₂ molecules

Question

Quizplus · Accepted Answer

2.0 moles of any substance contain $2.0 \times 6.022 \times 10^{23}$ atoms/molecules, which is greater than the number of atoms in the other options when calculated based on their molar masses and given quantities.

Which of the Following Samples Contains the Greatest Number of Atoms