How many grams of carbon dioxide CO are produce... - SS1 Chemistry Chemical Reactions and Stoichiometry Question

The balanced equation is: CH₄ + 2O₂ → CO₂ + 2H₂O

 

From the equation, we can see that for every one mole of methane (CH₄) combusted, one mole of carbon dioxide (CO₂) is produced.

 

Convert the given mass of methane (CH₄) to moles.

Number of moles of CH₄ = Mass / Molar mass

= 12 g / 16 g/mol = 0.75 mol

Determine the moles of carbon dioxide (CO₂) produced.

Since the molar ratio of CH₄ to CO₂ is 1:1, the number of moles of CO₂ produced is also 0.75 mol.

 

Convert the moles of CO₂ to grams.

Mass of CO₂ = Number of moles of CO₂ x Molar mass of CO₂

= 0.75 mol x 44 g/mol = 33 g