Find the number of atoms of each element in 180g na2so4

Explanation:

There really are no atoms. Some are ions. However at your level, I think you are expected to answer something connected to 6.02 * 10^23

First Find the mass of one mole

Na: 2 * 23 = 46

S:    1 * 32 = 32

O:   4* 16  = 64

Total          142

Next Find the number of Moles

1 mole has a mass of 142

x mole have a mass of 180

Cross Multiply

142 * x = 180  * 1

x = 180 / 142

x = 1. 27 moles.

Next figure out the number of atoms in 1.27 moles of Na2SO4

Na: 2 * 1.27 * 6.02 * 10^23 = 1.53 * 10^24

S : 1  * 1.27 * 6.02 * 10^23 =  7.6 * 10^23

O: 4 * 1.27 * 6.02 * 10^23  =3.05 * 10^24

Total                                      5.34*10^24

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hope i !