Problem: Propenoic acid, C3H4O2, is a reactive organic liquid that is used in the manufacturing of plastics, coatings, and adhesives. An unlabeled container is thought to contain this liquid. A 0.376-g sample is combusted to produce 0.202 g of water and 0.427 g of carbon dioxide.Is the unknown liquid propenoic acid?

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FREE Expert Solution

Recall that in combustion analysisa compound reacts with excess O2 to form products


For a compound composed of C, H, and O, the reaction looks like this:


CxHyOz + O2 (excess)  x CO2y H2O


This means we need to do the following steps:


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Problem Details

Propenoic acid, C3H4O2, is a reactive organic liquid that is used in the manufacturing of plastics, coatings, and adhesives. An unlabeled container is thought to contain this liquid. A 0.376-g sample is combusted to produce 0.202 g of water and 0.427 g of carbon dioxide.

Is the unknown liquid propenoic acid?

Frequently Asked Questions

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 Combustion Analysis concept. You can view video lessons to learn Combustion Analysis. Or if you need more Combustion Analysis practice, you can also practice Combustion Analysis practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Xie's class at LSU.