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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 = 0.789g/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 percent yield of H2 O for the reaction.

FREE Expert Solution

We’re being asked to calculate the percent yield of H2O in the combustion of liquid ethanol.


Recall that percent yield is given by: 

% Yield = actual yieldtheoretical yield×100


We will determine the theoretical yield of H2O then its percent yield.


For this problem, we need to do the following steps:

Step 1: Write and balance a chemical equation for the given reaction.

Step 2: Determine the moles of each reactant

Step 3: Determine the limiting reactant and actual yield of H2O.

Step 4: Calculate the percent yield of H2O


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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 = 0.789g/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 percent yield of H2 O for the reaction.

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