Question

Which of the following pure copper samples contains the largest number of
atoms?
Sample A: 6.70 g
Sample B: 0.110 mol
Sample C: 7.83 x 1022 atoms

Answer 1

Answer:

Correct option is

D

1 g of B(s)

Larger is the number of moles, larger is the number of molecules.

As molar mass of B is lowest (=11 g), it will have larger number of moles. Hence, its 1 g will have highest number of molecules and moles.

Answer 2

Answer:d

Explanation: