Question

The molar mass of magnesium (Mg) is 24.30 g/mol. there are 6.02x10 23 atoms in 1 mol. How many atoms are present in 48.60!g of Mg

Answer 1

1) 48.60 g Mg * 1mol Mg/24.30 g Mg = 2 mol Mg

2) 2 mol Mg *(6.02*10²³) Mg/1 mol Mg = 12.04 *10²³ atoms of Mg

There are 12.04 *10²³ atoms of Mg  in 48.60 g Mg.