Which equivalence factor should you use to convert from 3.48 x 1018 atoms of magnesium (mg) to moles of magnesium?

The equivalence factor that should be used is 1/6.022x10^23. This is called the Avogadro's number. It represents the number of particles in one mole of any substance. This has the value of 6.022 x 10^23 particles / mole. This number can be used to convert the number of atoms or molecules into number of moles. 

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