Understanding the Concepts
* Mole: A mole is a unit of measurement that represents a specific number of particles (atoms, molecules, etc.). One mole contains 6.022 x 10^23 particles, which is known as Avogadro's number.
* Hydrogen: Hydrogen exists as a diatomic molecule (H₂), meaning each molecule contains two hydrogen atoms.
Calculation
1. Atoms per Mole: Since each mole of hydrogen contains 6.022 x 10^23 molecules, and each molecule has 2 hydrogen atoms, there are 2 * 6.022 x 10^23 = 1.2044 x 10^24 hydrogen atoms per mole.
2. Total Atoms: Multiply the number of atoms per mole by the number of moles: 1.2044 x 10^24 atoms/mole * 2.5 moles = 3.011 x 10^24 atoms.
Answer: There are approximately 3.011 x 10^24 hydrogen atoms in 2.5 moles of hydrogen.
