If one atom of an element 'x' weigh . What will be the number of moles in 20 Kg?
Step 1: Calculating the number of atoms
Given that, the mass of 1 atom is , and the total mass is
If is the weight of 1 atom
is the weight of
Step 2: Calculating the number of moles
We know that
So, the number of moles is,
Therefore, the total number of moles that would weigh 20kg is around moles.