Calculate how many gram of magnesium oxide is formed by burning 24g of magnesium in

air? (Atomic mass of Mg=24 and O=16)

Q.

In a compound of magnesium (Mg = 24) and nitrogen (N= 14 ), 18 g of magnesium combines with 7 g of nitrogen.
Deduce the simplest formula by answering the following questions:
(a) how many gram atoms of magnesium are equal to 18 g?
(b) how many grams atoms of nitrogen equal to 7 g of nitrogen?
(c) calculate simple ratio of gram atoms of magnesium to gram atoms of nitrogen and hence the simplest formula of the compound formed.

Q. Calculate the number of gram atomic mass of magnesium present in a magnesium ribbon weighing $12\text{g}$. Gram atomic mass of magnesium is $24\text{g}$. [2 marks]

Q. How many grams of magnesium oxide is formed when 4.8 gm of magnesium is combined with 3.2 gm of oxygen?

Q. 4.8 g of magnesium on burning with same amount of oxygen gives magnesium oxide. Calculate the amount of product formed.

Q. When magnesium burns in air, compounds of magnesium formed are magnesium oxide and: