Chemistry
posted by Kat .
Use Hess' Law to calculate the heat of the following equation. Show all work including the reactions that you use, in the form that you use them.
2 C + 2 NO2 > 2 CO 2 + N 2

Chemistry 
DrBob222
deltaHrxn = (n*deltaHf products)  (n*deltaHf reactants).
Look up delta Hf values, substitute, and calculate delta H rxn.
Respond to this Question
Similar Questions

College Chemistry Hess's Law
Nitrogen oxides undergo many interesting reactions in the environment and in industry. Given the following information, calculate H for the overall equation: 2 NO2(g) + 1/2 O2(g) = N2O5(s). 2 NO(g) + 3/2 O2(g) = N2O5(s), H = 223.7 … 
chemistry  hess's law (check + help)
31. Carbon monoxide reacts with hydrogen gas to produce a mixture of methane, carbon dioxide, and water. (This mixture is known as substitute natural gas.) 4CO(g) + 8H2(g) → 3CH4(g) + CO2(g) + 2H2O(_) Use the following thermochemical … 
chemistry
At 25 C the following heats of reaction are known: 2CIf (g)+ O2(g) > CL2O (g) + f2O Delta H rxn= 167.4 kj/mol 2CIf3(g) + 2O2 (g)> Cl2O(g) + 3F2O(g) Delta H rxn= 341.4 2F2(g) + O2(g) > 2F2O(g) Delta H rxn= 43.4kj/mol at … 
chemistry
Given a balloon you have at home, to determine the barometric pressure in your area. Record the pressure below. Your balloon contains 22 grams of Carbon dioxide. Use the following link to determine the temperature in your area. and … 
chemistry
Your balloon contains 22 grams of Carbon dioxide. Use the following link to determine the temperature in your area. and then use the following to convert to Kelvin. Record below. Given the Gas Constant R please use the ideal gas law … 
chem urgent!
Set up a Hess's law cycle, and use the following information to calculate ÄH°f for aqueous nitric acid, HNO3(aq). You will need to use fractional coefficients for some equations. 3 NO2(g) + H2O(l) 2 HNO3(aq) + NO(g) ÄH° = 138.4 … 
Chemistry
Use Hess's Law to find the change in heat of 2C(graphite)+H2(g)>C2H2(g)? 
chemistry
Hess¡¯ law says that when we add reactions together we can also add the enthalpies. Given the following set of reactions, use Hess¡¯ Law to calculate the enthalpy of the reaction given below. N2H4 + H2 ¡æ 2 NH3 ¥ÄH¡Æ = ? 
Chemistry
I really need help with this I am really confused with the law, I have looked at multiple examples and I am still so confused, I know you can't give me the answer, but is there anyway you could please take me through this question … 
Algebra 2
Use the following equation to perform the operations below (do not graph the equation yet): y ={x + 5}{x + 1}\{(x + 3)(x  2)}{(x  4)(x + 1)})  {1}/{x  2} What graphical feature occurs at {x} = 1?