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Problem: The combustion of liquid ethanol (C2 H5 OH) produces carbon dioxide and water. After 4.63 mL of ethanol (density = 0.789/ml) was allowed to burn in the presence of 15.60 g of oxygen gas, 3.73 mL of water (density = 1.00/ml) was collected.Determine the limiting reactant for the reaction. (Hint: Write a balanced equation for the combustion of ethanol.)

🤓 Based on our data, we think this question is relevant for Professor Kijewska & Pollock's class at MSU.

FREE Expert Solution

We are asked to determine the limiting reactant for the reaction.


Balance reaction: 

C2H5OH  + 3 O2→ 2 CO2 + 3 H2O


Molar mass C2H5OH = 46.08 g/mol

Molar mass O2 = 32.0 g/mol

Molar mass H2O =18.02 g/mol


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Problem Details

The combustion of liquid ethanol (C2 H5 OH) produces carbon dioxide and water. After 4.63 mL of ethanol (density = 0.789/ml) was allowed to burn in the presence of 15.60 g of oxygen gas, 3.73 mL of water (density = 1.00/ml) was collected.

Determine the limiting reactant for the reaction. (Hint: Write a balanced equation for the combustion of ethanol.)

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Limiting Reagent concept. If you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Kijewska & Pollock's class at MSU.