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the mass of 2.50 mol of a compound with the

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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A compound, which is a nonelectrolyte, analyzes to be 40.0% C, 5.10% H, and 54.2% O by mass. When 11.8 g of this compound is
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2. asked by mark
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The mass of a sample of a liquid compound was found to be 0.534 g after the compound was vaporized in a containter placed in a
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A chemistry needs 25.0 mL of a liquid compound.a) What mass of the compound is necessary if the density is 0.718 g/cm³? b) If
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CompletionTo calculate the percent composition of a known compound, start with chemical formula of the compound and calculate
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2. asked by Bryan
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The chlorination of ethane gives a compound with the percent composition by mass of chlorine in the compound is 71.7%A) find the
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2. asked by angy
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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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2. asked by Anonymous
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Combustion analysis of 0.343 g of a compound containing C, H, and O produces 0.753 g of CO2 and 0.411 g of H2O. Mass spectral
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2. asked by Abraham
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Combustion analysis of 0.284 g of a compound containing C, H, and O produces 0.623 g of CO2 and 0.340 g of H2O. Mass spectral
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2. asked by Darali
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Combustion analysis of 0.213 g of a compound containing C, H, and O produces 0.468 g of CO2 and 0.255 g of H2O. Mass spectral
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