How many oxygen atoms are present in 10 moles of Carbon - di -oxide ?
Hello Student,
1 mole = 6.022*10^23 atoms
So in 10 moles of CO2 the number of oxygen atoms would be
----> 10*6.022*10^23*2 = 1.2044 * 10^25 atoms of oxygen.
Since each CO2 molecules has 2 oxygen atoms therefore 2 is multiplied .
Also if suppose the number of carbon atoms were asked then
answer would be 6.022 * 10^24 .
Hope this helps