How many molecules of dinitrogen pentoxide are in .72 moles of dinitrogen pentoxide?

1 Answer
Jun 11, 2016

Answer:

There are #N_Axx0.72" molecules"# of #N_2O_5#, where #N_A# #=# #6.022xx10^23#.

Explanation:

#"Molecules of "N_2O_5# #=#

#6.022140857(74)×10^23*cancel(mol^-1)xx0.72*cancel(mol)# #=# #??#

How many #N# atoms? How many #O# atoms?