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Consider the mixture of ethanol, C2H5OH, and O2 shown in
Chapter , Problem 3.75(choose chapter or problem)
Consider the mixture of ethanol, C2H5OH, and O2 shown in the accompanying diagram. (a) Write a balanced equation for the combustion reaction that occurs between ethanol and oxygen. (b) Which reactant is the limiting reactant? (c) How many molecules of CO2, H2O, C2H5OH, and O2 will be present if the reaction goes to completion?
Questions & Answers
QUESTION:
Consider the mixture of ethanol, C2H5OH, and O2 shown in the accompanying diagram. (a) Write a balanced equation for the combustion reaction that occurs between ethanol and oxygen. (b) Which reactant is the limiting reactant? (c) How many molecules of CO2, H2O, C2H5OH, and O2 will be present if the reaction goes to completion?
ANSWER:Problem 3.75Consider the mixture of ethanol, C H OH, and O show2in5he accompanying 2iagram. (a)Write a balanced equation for the combustion reaction that occurs between ethanol andoxygen. (b) Which reactant is the limiting reactant (c) How many molecules of CO , H O, 2 2C 2 5, and O will be2resent if the reaction goes to completion Step-by-step solution Step 1 of 3 (a)The combustion reaction between ethanol and oxygen is shown as follows: C2 5(l) + O 2(g) CO (g) + 2 O (g) 2The equation is not the balanced chemical equation.To balance the carbon atoms multiply the carbon dioxide molecule on the product side by 2.Also, multiply the water molecule on the product side by 3 to balance the hydrogen atoms.Then the equation becomes as follows: C2 5(l) + O 2(g) 2CO (g) + 32 O (g) 2Multiply oxygen molecule on reactant side by 3 to balance the oxygen atoms. Then, theequation becomes a balanced chemical equation as follows: C2 5(l) + 3O 2 (g) 2CO (g) + 2 O (g) 2