Question

How many moles of methane are required to produce 22g of Co²(g), after combustion?​

Answer 1

Correct question :-

How many moles of methane are required to produce 22g of CO$_2$(g), after combustion?

AnSwer :-

According to the chemical equation,

$\sf CH_4 (g) + 2O_2 (g) \longrightarrow CO_2 (g) + 2H_2O (g)$

44g CO$_2$(g) is obtained from 16g CH$_4$(g)

[ $\therefore$ 1 mol CO$_2$(g) is obtained from 1 mol of CH$_4$(g) ]

Number of moles of CO$_2$ (g)

$\sf = 22 \: g \: CO_2 (g) × \dfrac {1 mol \: CO_2 (g)}{44g \: CO_2 (g)}$

$\sf = 0.5 \: mol \: CO_2 \: (g)$

Thus, 0.5 mol CO$_2$ (g) would be obtained from 0.5 mol CH$_4$ (g)

or 0.5 mol of CH$_4$ (g) would be required to produce 22g CO$_2$ (g)