Question

Calculate the amount of ${CO}_2$ that could be produced when $2$ moles of carbon are burnt in $16g$ dioxygen.

Answer 1

Solution:

Total molecular weight of $C{O}_2$ = molecular weight of carbon + molecular weight of dioxygen.

= $12g+32g=44g$

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, $22\times 2=44g$ is the answer.