How many molecules are in 0.454 kg of carbon dioxide?

1 Answer
Jun 13, 2016

Answer:

How many molecules in a pound of carbon dioxide?

#(454*g)/(44.0*g*mol^-1)xxN_A#, where #N_A=6.022xx10^23*mol^-1#.

Explanation:

#N_A# #=# #"Avogadro's number"# #=# #6.022xx10^23*mol^-1#. By definition, in #44.0*g# of carbon dioxide there are #"Avogadro's number"# of carbon atoms, and #2xx"Avogadro's number"# of oxygen atoms.

So we simply calculate the product:

#(454*g)/(44.0*g*mol^-1)xxN_A# #~=# #10N_A#