1.0 g of magnesium is burnt with 0.56 g O 2 in a closed vessel. Which reactant is left in excess and how much? (At, wt. M g = 24 ; O = 16 )

Question

Aicharya · Accepted Answer

M g + 1 2 O 2 → M g O 1.0 24 0.56 32 0.5 12 0.07 4 Oxygen is limiting reagent so 0.07 4 - x 2 = 0 x = 0.07 2 excess M g = 0.5 12 - 0.07 2 mole mass of M g is = 1 - 0.7 × 12 = 0.16 g r a m .

1.0 g of magnesium is burnt with 0.56 g O 2 in a closed vessel. Which reactant is left in excess and how…

Solution