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

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.

d

Explanation:

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.