Question

1.2 gram of MG will produce MgO equal to​

Answer 1

Explanation:

1.2g of Mg is 1.2/24=0.05 moles of Mg. As per the stoichiometric equation, Mg+0.5O2=MgO, one mole of Mg produces one mole of MgO. Which means, 0.05 moles of MgO are produced. The molar mass of MgO=24+16=40

Answer 2

1 Mole Mg →1 mole MgO

24 g Mg → 40 g MgO

1 g Mg→40/24 g MgO

1.2g Mg→ (40/24)*1.2 g MgO

1.2g Mg→ 2.0 g MgO