Question

how many oxygen atoms are there in 0.1 mole of carbon dioxide​

Answer 1

Explanation:

There is ONE CARBON ATOM, that is 6 electrons; and TWO OXYGEN ATOMS, that is 16 electrons, i.e. 22 electrons per molecule. Moles of carbon dioxide = 100⋅g44.01⋅g⋅mol−1=2.27⋅mol .