• # question_answer 4) How many moles of methane are required to produce $22g\,\,C{{O}_{2}}$ after combustion?

$\underset{\underset{{}}{\mathop{1mol}}\,}{\mathop{C{{H}_{4}}+2{{O}_{2}}(g)}}\,\to C{{O}_{2}}(g)+\underset{\underset{{}}{\mathop{1mol}}\,}{\mathop{2{{H}_{2}}O(g)}}\,$ Number of moles of $C{{O}_{2}}=\frac{\text{mass}\,\text{in}\,\text{garm}}{\text{Gram}\,\text{molecular}\,\text{mass}}$ $=\frac{22}{44}=0.5$ Gram molecular mass Number of moles of methane = Number of moles of $C{{O}_{2}}$ formed $=\text{ }0.5\text{ }mol$