Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight. (a) Whose container is heavier? (b) Whose container has more number of atoms?

(a) Mass of sodium atoms carried by Krish = (5 x 23) g = 115 g

Mass of carbon atoms carried by Raunak = (5 × 12) g = 60 g

Thus, Krish’s container is heavier.

(b) Both the bags have same number of atoms as they have same number of moles of atoms.