Question

Consider the reaction CH4 + 2 O2 → CO2 + 2 H2O Exactly 14.5 moles of CO2 are produced upon reaction of 34.6 moles of O2 and how many moles of CH4?
1. 65.2 moles
2. 14.5 moles
3. 34.5 moles
4. 29.0 moles
5. 16.3 moles
6. 17.3 moles

Answer 1

Answer:

2) 14.5 moles

Explanation:

The balanced chemical reaction for the $CO_{2}$ formation is:

$CH_{4}+2O_{2}=CO_{2}+2H_{2}O$

If 14.5 moles of $CO_{2}$ are produced, is needed to use the stoichiometry of the chemical reaction to calculate how many moles of $CH_{4}$ reacted to form this quantity:

$14.5molesCO_{2}*\frac{1molCH_{4}}{1molCO_{2}}=14.5molesCH_{4}$

Therefore 14.5 moles of $CO_{2}$ are produced by 14.5 moles of $CH_{4}$