Why does 25 atomic ppm oxygen mean 25 moles of oxygen in 1e6 mole Fe?
# = mol*Avo
The Attempt at a Solution
I understand the ppm (parts per million) part. Hence why 25 ppm means 25:1e6. What I do not understand is how they go from atomic to moles....
The only way I can explain it is:
# = mol*Avo ---> Since Avogadro's number is a constant, the difference between # (atomic) and mol (moles) is just a given ratio (a number), thus you can use either... But then where is the conversion?...