One atom of an element `x` weighs `6.643 xx 10^(-23)g`. Number of moles of atoms in its `20kg` is :

One atom of an element x weight 6.643xx10^(-23)g . Number of moles of atom in 20 kg is :

One atom of an element x weight 6.643xx10^(-23)g . Number of moles of atom in 20 kg is :

One atom of an element x weight 6.643xx10^(-232)g . Number of moles of atom in 20 kg is :

One atom of an element X weighs 6 xx 10^(-23) gm . Number of moles of atoms in 3.6 kg of sample of X will be : (N_(A) = 6 xx 10^(23))

One atom of an element X weighs 6 xx 10^(-23) gm . Number of moles of atoms in 3.6 kg of sample of X will be : (N_(A) = 6 xx 10^(23))

One atom of an element X’ weighs 6.644 xx 10^(-23) g. Calculate the number of gram atoms in 80 kg of it.

One atom of an element X weighs 6.644 xx 10^(-23) g. Calculate the number of gram-atoms in 40 kg of it.