Which has more atoms: 3.0 g of iron, or 2.0 g of sulfur?

1 Answer
Jan 11, 2016

Answer:

You must calculate the molar quantity of each element. Moles relate to the number of species. If there are 1 mole of particles, there are #6.022xx10^23# individual particles.

Explanation:

Moles of iron, #(3.0*cancelg)/(55.85*cancel(g)*mol^-1)# #=# #??mol#

Moles of sulfur, #(2.0*cancelg)/(32.06*cancel(g)*mol^-1)# #=# #??mol#

I leave it to you to do these calculation and get an answer in moles. It looks pretty clear that there are more sulfur atoms.