Question

How many grams of magnesium are in 7.43 x 10 to the 22 atoms of mg

Answer 1

Mass of Mg=3 g

Further explanation

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

mol Mg in 7.43 x 10²² atoms :

`\tt (7.43* 10^(22))/(6.02* 10^(23))=0.1234`

mass Mg

`\tt mass=mol* MW\\\\mass=0.1234* 24.3=2.99\approx 3`