1.Ibuprofen is a compound used in painkillers. When a 2.174 g sample is burned in an excess of oxygen, it yields 6.029 g CO2 and 1.709 g H20 as the sole products. (a)What is the percent composition, by mass, of ibuprofen? (b) What is the empirical formula of ibuprofen?

Chemistry for Engineering Students
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Author:Lawrence S. Brown, Tom Holme
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Chapter4: Stoichiometry
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1.Ibuprofen is a compound used in painkillers. When a 2.174 g sample is burned in an excess
of oxygen, it yields 6.029 g CO2 and 1.709 g H2O as the sole products. (a)What is the percent
composition, by mass, of ibuprofen? (b) What is the empirical formula of ibuprofen?
Transcribed Image Text:1.Ibuprofen is a compound used in painkillers. When a 2.174 g sample is burned in an excess of oxygen, it yields 6.029 g CO2 and 1.709 g H2O as the sole products. (a)What is the percent composition, by mass, of ibuprofen? (b) What is the empirical formula of ibuprofen?
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