Use Hess's Law to calculate the molar heat of combustion for 15 grams of sugar when it is burned in oxygen to produce carbon dioxide and water vapour. Using the formula....
__C6H12O6(s) + __ O2(g) --> __CO2(g) + __H2O(v)
Please show step by step and explanations would be appreciated.
Thank you in advance! *WILL AWARD BEST ANSWER*
__C6H12O6(s) + __ O2(g) --> __CO2(g) + __H2O(v)
Please show step by step and explanations would be appreciated.
Thank you in advance! *WILL AWARD BEST ANSWER*
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I'm not sure what this has to do with Hess's Law as Hess's law is the addition of reactions with a known DeltaH to find a net DeltaH for a series of reactions that will cancel to a given equation.
Are you given any other reactions? Usually Hess's Law problems will give a series of reactions and you will multiply by a coeffficient or flip the equation to get like terms to cancel out to the products and reactants of the reaction you listed above.
At the end, since DeltaH is given in kJ/mol, you would take
15 g * (1 mol / molar mass of sugar in g) * DeltaH from solving Hess's Law/ 1 mol = Answer.
I'm not sure how to help you further without the intermediate equations to do the typically Hess's Law type problem.
///if you edit the problem soon if you have these, I will come back and help you soon :D
Are you given any other reactions? Usually Hess's Law problems will give a series of reactions and you will multiply by a coeffficient or flip the equation to get like terms to cancel out to the products and reactants of the reaction you listed above.
At the end, since DeltaH is given in kJ/mol, you would take
15 g * (1 mol / molar mass of sugar in g) * DeltaH from solving Hess's Law/ 1 mol = Answer.
I'm not sure how to help you further without the intermediate equations to do the typically Hess's Law type problem.
///if you edit the problem soon if you have these, I will come back and help you soon :D