The molar mass of barium nitrate (#Ba(NO_3)_2#) is 261.35 g/mol. What is the mass of #5.30 x 10^22# formula units of #Ba(NO_3)_2#?

1 Answer
Jul 21, 2016

Answer:

Well, how many barium nitrate formula units are in #261.35*g#?

Explanation:

It is fact that #6.023xx10^23# formula units of barium nitrate have a mass of #261.35*g#. This is what we specify when we say molar mass. And thus the mass of #5.30xx10^22# formula units of barium nitrate is the quotient multiplied by the molar mass:

#(5.30xx10^22)/(6.023xx10^23)molxx261.35*g*mol^-1# #=??g#