Hi,

Question

how many moles does 0.225g of oxygen atoms represent?

If 1 mole of oxygen atoms represents 16.0g?

Thanks

mols = grams/molar mass.

thot so.

Thanks for confirming ;)

This is right for oxygen atoms, however, oxygen in the atmosphere is O2, and we normally think of a mole of O2 molecules. Make certain which you need.

thanks