How many moles of Mg atoms in 75.0 g of Mg?

Explanation:

3.0857848179387

this might help in future https://www.convertunits.com/from/grams+Magnesium/to/moles

1 grams Magnesium to mol = 0.04114 mol

10 grams Magnesium to mol = 0.41144 mol

20 grams Magnesium to mol = 0.82288 mol

30 grams Magnesium to mol = 1.23431 mol

40 grams Magnesium to mol = 1.64575 mol

50 grams Magnesium to mol = 2.05719 mol

100 grams Magnesium to mol = 4.11438 mol

200 grams Magnesium to mol = 8.22876 mol

particle   p is an electron and particle q is a neutron