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
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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


89% (444 ratings)
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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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 Percent Yield concept. You can view video lessons to learn Percent Yield Or if you need more Percent Yield practice, you can also practice Percent Yield practice problems .

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