Answer to Question #208229 in General Chemistry for cmdraj

Question

   Combustion reactions are a notable source of carbon dioxide in the environment. Using the following balanced equation, how many grams of carbon dioxide are formed when 100.00 g of propane (C3H8) is burned? Express your answer to the correct number of significant figures. Be sure to show all steps completed to arrive at the answer.

C₃H₈ + 5O₂ = 3CO₂ + 4 H₂O

Answer 1

C3H8 + O2 = 3CO2 + 4 H2O

Moles of C3H8 = 100 / 44 = 2.28 mole

Moles of CO2 = ( 3 × 2.28 ) mole.

Mass of CO2 = ( 3× 2.28 )× 44 gram

= 300.96 gram .