Question

Calculate the amount of ${\mathrm{CO}}_2$ that could be produced when
1) 1 mole of Carbon is burnt in the air
2) 1 mole of Carbon is burnt in 16 grams of ${\mathrm{O}}_2$
3) 2 moles of Carbon is burnt in 16 gram of ${\mathrm{O}}_2$

Answer 1

Step 1: Calculation of the amount of Carbon dioxide(${\mathrm{CO}}_2$)

When 1 mole of Carbon is burnt in the air
$C+O_2\to C{O}_2$
1 mole of Carbon produces 1 mole of ${\mathrm{CO}}_2$ which is 44g of ${\mathrm{CO}}_2$ as the molar mass of ${\mathrm{CO}}_2$ is 44 g.

1 mole of Carbon is burnt in 16g of Dioxygen( ${\mathrm{O}}_2$)
32g of ${\mathrm{O}}_2$ = 44g of ${\mathrm{CO}}_2$
1g of ${\mathrm{O}}_2$ = $\frac{44}{32}$
16g of ${\mathrm{O}}_2$ = $\frac{44}{32}\times 16$
16g of ${\mathrm{O}}_2$ = 22g of CO₂ in one mole

2 moles of Carbon burnt in 16g of Dioxygen (${\mathrm{O}}_2$) will produce $22\times 2$ g of ${\mathrm{CO}}_2$.
2 moles of Carbon burnt in 16g of Dioxygen (${\mathrm{O}}_2$) will generate 44 g of ${\mathrm{CO}}_2$.