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Balancing Chemical Equations by Partial Equation Method

26.calculate ...

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26.calculate the enthalpy of formation of acetic acid if the enthalpy of combustion of co2 gas and H2o liquid is -867 kJ per mol and enthalpy of formation of Co2 and H2o are -393.5 and -285.9 kJ per mol respectively.

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Q. Calculate the enthalpy of formation of acetic acid (

C H_{3} C O O H

) if its enthalpy of combustion is

- 867 k J m o l^{- 1}

.The enthalpies of formation of

C O_{2} (g)

H_{2} O (l)

- 285.9 k J m o l^{- 1}

Q. The enthalpy of the formation of

C O_{2}

H_{2} O

- 395 k J

- 285 k J

respectively and the enthalpy of combustion of acetic acid is

869 k J

. The enthalpy of formation of acetic acid is:

Q. Enthalpy of combustion of carbon to

C O_{2}

m o l^{- 1}

. Calculate the heat released upon formation of 35.2g of

C O_{2}

from carbon and dioxygen gas.

Q. The enthalpy of combustion of one mole of benzene, carbon and hydrogen are

- 3267 k J / m o l, - 393.5 k J / m o l

- 285.8 k J / m o l

respectively. Calculate the standard enthalpy of formation of benzene.

Q. The enthalpy of combustion of carbon and carbon monoxide are

- 393.5

- 283 k J / m o l

respectively. The enthalpy of formation of carbon monoxide per mole is:

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