There are four Hydrogen atoms in one molecule of Methane (CH₄). And there are 6.022×10²³ molecules in 1 mole of CH₄. So, Number of Hydrogen atoms is 1 mole of CH₄ are,
= 6.022 × 10²³ × 4
= 2.4 ×10²⁴ Hydrogen Atoms
Now calculating for 2 moles,
As, 1 mole of CH₄ contains = 2.4 ×10²⁴ Hydrogen Atom Then, 2 moles of CH₄ will contain = X Hydrogen Atoms
Solving for X, X = (2 moles × 2.4 ×10²⁴ Hydrogen Atom) ÷ 1 mole
