Calculate the amount of ${C O}_{2}$ that could be produced when $2$ moles of carbon are burnt in $16 g$ dioxygen.

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Solution

Solution:
Total molecular weight of $C O_{2}$ = molecular weight of carbon + molecular weight of dioxygen.
= $12 g + 32 g = 44 g$
1 mole of carbon(6g) and 1 mole of dioxygen (32 g ) produce 44 g of carbon dioxide $C O_{2}$
Then 1 mole of carbon burnt with 16 g of oxygen , it will produce 44× 16 /32 = 22 g of $C O_{2}$
so when 2 mole of carbon burnt with 16 g of oxygen , it will produce $22 \times 2$ g of $C O_{2}$
i.e 44g of $C O_{2}$ will be generated.
Hence, $22 \times 2 = 44 g$ is the answer.

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Similar questions

Calculate the amount of carbon dioxide that could be produced when

(i) 1 mole of carbon is burnt in air.

(ii) 1 mole of carbon is burnt in 16 g of dioxygen.

(iii) 2 moles of carbon are burnt in 16 g of dioxygen.

A)

1 m o l e

B)

1 m o l e

16 g

C)

2 m o l e

16 g

C O_{2}

C H_{4}

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