Chemistry

Chemistry, 22.06.2019 09:00, Ezekielcassese

What is the percentage composition of carbon in the compound ch4

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Performing percent composition calculations carbon dioxide (co2) is a gaseous compound. calculate the percent composition of this compound, answer using three significant figures. what is the percent by mass of carbon? what is the percent by mass of oxygen?

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Chemistry, 26.10.2019 02:43, jxcxhxwxll

1) analysis of an organic compound indicates that it has a percentage composition as follows: 40.7% carbon; 5.0% hydrogen; 54.3% oxygen. when this compound is vapourized, 35.0 ml of the vapour has a mass of 0.184 g. determine the molecular formula for this compound. 2) a gaseous compound is found to have the following composition: 30,5% nitrogen and 69.5% oxygen. the molar mass of the gas if found to be 91.8 g/mol. what is the molecular formula of this gas? 2)

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