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A 1.914 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.867 g CO2 (9) and 2.802 g H2O(1) on complete combustion. This particular compound is also found to be an alkane with one methyl group attached to a longer carbon chain and to have a molecular formula twice its empirical formula. The compound also has the following properties: • melting point of -154 °C, • boiling point of 60.3 °C, • density of 0.6532 g mL¯! at 20 ° C, • specific heat of 2.25 J g¬1 °C-1. and 1 A¢H = -204.6 kJ mol¬1 .

A 1.914 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.867 g CO2 (9) and 2.802 g H2O(1) on complete combustion. This particular compound is also found to be an alkane with one methyl group attached to a longer carbon chain and to have a molecular formula twice its empirical formula. The compound also has the following properties: • melting point of -154 °C, • boiling point of 60.3 °C, • density of 0.6532 g mL¯! at 20 ° C, • specific heat of 2.25 J g¬1 °C-1. and 1 A¢H = -204.6 kJ mol¬1 .

Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter21: Biochemistry
Section: Chapter Questions
Problem 30QAP
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Use the masses of carbon dioxide, CO2, and water, H2 0, to determine the empirical formula of the alkane component. Express your answer as a chemical formula.
Transcribed Image Text:Use the masses of carbon dioxide, CO2, and water, H2 0, to determine the empirical formula of the alkane component. Express your answer as a chemical formula.
A 1.914 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.867 g CO2 (9) and 2.802 g H20(1) on complete combustion. This particular compound is also found to be an alkane with one methyl group attached to a longer carbon chain and to have a molecular formula twice its empirical formula. The compound also has the following properties: • melting point of – 154 °C, • boiling point of 60.3 °C, • density of 0.6532 g mL at 20 °C, • specific heat of 2.25 J g¯1 °C-1, and • A:H = -204.6 kJ mol-1 .
Transcribed Image Text:A 1.914 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.867 g CO2 (9) and 2.802 g H20(1) on complete combustion. This particular compound is also found to be an alkane with one methyl group attached to a longer carbon chain and to have a molecular formula twice its empirical formula. The compound also has the following properties: • melting point of – 154 °C, • boiling point of 60.3 °C, • density of 0.6532 g mL at 20 °C, • specific heat of 2.25 J g¯1 °C-1, and • A:H = -204.6 kJ mol-1 .
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