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A compound contains only carbon,

I did the work, but I need help checking it...A compound contains 83.24% by mass carbon. Calculate the molar mass of the
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2. asked by Kyle
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An unknown compound contains carbon, hydrogen, and oxygen. When burned, a 2.000 gram sample of this compound releases 3.451 g of
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2. asked by Mom
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A compound consists only of carbon, hydrogen, nitrogen, and oxygen. Combustion of 10.68 g of the compound produced 16.01 g
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a compound contains 5.2% by mass Nitrogen. It also contains carbon, hydrogen and oxygen. Combustion of 0.085g of the compound
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2. asked by martina
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A 25g sample of a compound composed of Carbon, Hydrogen, and Oxygen was combusted. 55grams of Carbon Dioxide and 30 grams of
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2. asked by Olga
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An unknown compound contains only carbon, hydrogen, and oxygen . Combustion of 2.50 g of this compound produced 3.67 g of carbon
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A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of 0.157g of the compound produced 0.123g carbon
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2. asked by salz
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When a 8.45-mg sample of a compound containing carbon is burned completely, 18.1 mg of carbon dioxide is produced. What is the
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2. asked by kai
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An Unknown Compound (M=60.09 g/mol) is composed of Carbon, Hydrogen and Oxygen. Combustion of 0.255 g of the unknown compound
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2. asked by John
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A gaseous compound containing carbon and hydrogen was analyzed and found to consist of between 80 and 90 percent carbon by mass.
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