Problem: If 7.50 g of the unknown compound contained 0.250 mol of C and 0.500 mol of H, how many moles of oxygen, O, were in the sample?An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 7.50 g of this compound produced 11.0 g of carbon dioxide and 4.50 g of water.

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If 7.50 g of the unknown compound contained 0.250 mol of C and 0.500 mol of H, how many moles of oxygen, O, were in the sample?


An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 7.50 g of this compound produced 11.0 g of carbon dioxide and 4.50 g of water.

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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.

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