The Problem 1. Use the balanced combustion reaction above to calculate the enthalpy of combustion (Hcomb) for C8H10. 2. Use combustion enthalpy to calculate the number of kilograms of C8H10 burned to generate the same amount of energy as the nuclear reactors. 3. Calculate the number of Liters of CO2 produced (at 1520. mmHg and 250.C) if the amount of C8H10 found in 2. is burned?

i think its 100

i hope this !

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol