Question

One atomof an element x weigh 6.643"10^-23g.number of moles of atom in 20kg

Answer 1

Answer:

The number of moles of an element x in 20 Kg is, 500 moles

Explanation:

Mark brilliant

Answer 2

Answer:

500

Explanation:

mass of one mole of atom = 6.643 ( 10^-23g) ( 6.02) (10^23)

no. of moles of atom in 20 kg (20000g) = 20000/(6.643) (6.02)= 500