The number of atoms : = 6.02.10²³
Further explanation
Given
mass = 20.17 g of Neon
Required
The number of atoms
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
mol Neon :
= mass : Ar Neon
= 20.17 : 20,1797 g/mol
= 0.999 ≈ 1
The number of atoms :
= 1 x 6.02.10²³
= 6.02.10²³
