How do I calculate enthalpy of combustion?

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Chemistry Tutorial : Heat (enthalpy) of Combustion

A tutorial on heat (enthalpy) of combustion suitable for high school students. home: test: ... Calculation of Heat of Combustion of ethanol: Calculate moles (n) ...

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How do i calculate the enthalpy of formation given the value of enthalpy of combustion?

example calculate the enthalpy of formation for ethene given its enthalpy of combustion is -1411kjmol^-1 enthalpy of combustion of carbon is -394, and hydrogen is -286kjmol^-1

Answer:

ok, i get 51Kjmol^-1, i may be wrong ofc, but im pretty sure. ok, from C2H4 (ethene), to 2CO2 and 2H...

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How to calculate enthalpy of combustion for magnesium?

Given Information: Mass of Mg(s) is 0.31g Initial temperature of calorimeter contents 24.1 Final Temperature of calorimeter contents 36.8 The magnesium was added to 100.0ml of HCl(aq) Additional Info: Mass of MgO(s) is 1.22g Initial Temp of calorimeter...

Answer:

IM GUESSING its deltaH=mc deltaT And urtemperature is basicallyfinal temperature minus inital temperature...

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Calculate the enthalpy for the combustion of pentane?

The combustion of pentane, C5H12, occurs via the reaction: C5H12 (g) + 8O2 (g) ---> 5CO2 (g) + 6H2O (g) with heat of formation values given by the following table: Substance: Delta H (f) (kJ/mol): C5H12 (g) -35.1 CO2 (g) -393.5 H2O (g) -2...

Answer:

The equation you want to use is: (sum of standard enthalpies of products) - (sum of standard enthalpies...

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Enthalpy Question: Calculate the Heat of Formation of C2H6(g) from the combustion of that compound? Thanks!?

Homework help please? I really don't understand how to do this! Calculate the Heat of Formation of C2H6(g) from the combustion of that compound and the combustion of carbon and hydrogen. Thank you so much!

Answer:

C2H6 + 7/2O2 ----> 2CO2 + 3H2O delta H1 C + O2 ---> CO2 delta H2 2H2+ O2 ---> 2H2O delta H...

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Answer:

-------C2H6O(l) + 3O2(g) ---> 2CO2(g) + 3H2O(l) + heat mol = 1 => 3 ---> 2 => 3 + heat H...

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Calculate the approximate enthalpy change, Delta H(rxn) for the combustion of methane:?

Calculate the approximate enthalpy change, Delta H(rxn) for the combustion of methane: CH4 + 2O2 ----> 2H2O + CO2 Use the values you calculated in Parts A, B, C, and D, keeping in mind the stoichiometric coefficients.

Answer:

It depends on that you have formation standard enthalpy or bonds standard enthalpy which makes me to...

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Calculate the enthalpy of combustion, Delta H comb, for C6H14...?

You'll first need to determine the balanced chemical equation for the combustion of C6H14. (Express your answer to four significant figures and include the appropriate units.) /\ H comb = __________ --------------------------------------... Don't know...

Answer:

http://answers.yahoo.com/question/index?… delta H = [ 6 X -393.5 + 7 X -285.8 ] - [ -204.6 +...

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Answer:

The Standard Enthalpy of Combustion, DH degrees c, 298, is the heat evolved when 1 mole of a substance...

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Answer:

The Standard Enthalpy of Combustion, DH degrees c, 298, is the heat evolved when 1 mole of a substance...

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