CH4+2O2→CO2+2H2O How many grams of \text{CO}_2CO 2 start text, C, O, end text, start subscript, 2, end subscript will be produced from 12.0 \text{ g}12.0 g12, point, 0, start text, space, g, end text of \text{CH}_4CH 4 start text, C, H, end text, start subscript, 4, end subscript and 133 \text{ g}133 g133, start text, space, g, end text of \text{O}_2O 2 start text, O, end text, start subscript, 2, end subscript?

Explanation:

Rewrite the question for better understanding:

1. Write the mole ratio

2. Convert the masses of CH₄ and O₂ to number of moles

Since 1 mole of CH₄ react with 2 moles of O₂, 0.750 mole of CH₄ need 1.50 moles of O₂, which means that there is O₂ in excess and the limiting reactant is CH₄.

Since every mole of CH₄ produced one mole of CO₂, 0.750 moles of CH₄ will produce 0.75 moles of CO₂.

To convert moles to grams, multiply by the molar mass.

the answer is definitely c.