Consider the combustion of liquid CsHs in oxygen gas to produce carbon dioxide gas and water vapor. In an experiment, 0.1063 g of CsHs is combusted to produce enough heat to raise the temperature of 150.0 g of water by 7.650 °C. Given the AH (-3076. kJ/mol) for the combustion reaction and the balanced chemical equation: CSH3 (1) + 7 O2 (g) → 5 CO2 (g) + 4 H2O (g) Using the table below and the balanced chemical equation, determine the enthalpy of formation for CsHs, in kJ/mol. Compound AHº (kJ/mol) O2 CO2 -393.5 H2O -241.8

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Consider the combustion of liquid CsHs in oxygen gas to produce
carbon dioxide gas and water vapor. In an experiment, 0.1063 g of
CsHs is combusted to produce enough heat to raise the temperature of
150.0 g of water by 7.650 °C.
Given the AH (-3076. kJ/mol) for the combustion reaction and the
balanced chemical equation:
CsHs (1) + 7 O2 (g) → 5 CO2 (g) + 4 H2O (g)
Using the table below and the balanced chemical equation, determine
the enthalpy of formation for CsHs, in kJ/mol.
Compound
AH:° (kJ/mol)
O2
CO2
-393.5
H2O
-241.8
Transcribed Image Text:Consider the combustion of liquid CsHs in oxygen gas to produce carbon dioxide gas and water vapor. In an experiment, 0.1063 g of CsHs is combusted to produce enough heat to raise the temperature of 150.0 g of water by 7.650 °C. Given the AH (-3076. kJ/mol) for the combustion reaction and the balanced chemical equation: CsHs (1) + 7 O2 (g) → 5 CO2 (g) + 4 H2O (g) Using the table below and the balanced chemical equation, determine the enthalpy of formation for CsHs, in kJ/mol. Compound AH:° (kJ/mol) O2 CO2 -393.5 H2O -241.8
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