Answer:
0.5 moles
Explanation:
Given data:
Number of moles of N₂O₄ = ?
Number of molecules = 3.011 × 10²³ molecules
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
Number of moles in 3.011 × 10²³ molecules of N₂O₄.
3.011 × 10²³ molecules × 1 mol / 6.022 × 10²³ molecules
0.5 moles
