Answer:
The number of moles of O atom in [tex](7.9\times10^{-1})[/tex] mol of [tex]CO_{2}[/tex] = 1.6
Explanation:
1 molecule of [tex]CO_{2}[/tex] contains 2 atoms of O
So, [tex](6.023\times 10^{23})[/tex] molecules of [tex]CO_{2}[/tex] contains [tex](2\times6.023\times10^{23})[/tex] atoms of O.
We know that 1 mol of an atom/molecule/ion represents [tex]6.023\times10^{23}[/tex] numbers of atoms/molecules/ions respectively.
So, [tex](6.023\times 10^{23})[/tex] molecules of [tex]CO_{2}[/tex] is equal to 1 mol of [tex]CO_{2}[/tex].
[tex](2\times6.023\times10^{23})[/tex] atoms of O is equal to 2 moles of O atom.
Hence, 1 mol of [tex]CO_{2}[/tex] contains 2 moles of O atom.
Therefore, [tex](7.9\times10^{-1})[/tex] mol of [tex]CO_{2}[/tex] contains [tex](2\times7.9\times10^{-1})[/tex] moles of O atom or 1.6 moles of O atom.
