Answer:
0.37× 10⁵ moles of neon
Step-by-step explanation:
Given data:
Number of atoms of neon = 2.22 × 10²⁸
Number of moles = ?
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
For 2.22 × 10²⁸ atoms:
2.22 × 10²⁸ atoms × 1 mol / 6.022 × 10²³ atoms
0.37× 10⁵ moles of neon