Friday
August 1, 2014

Homework Help: please check my answer

Posted by hannah on Tuesday, November 6, 2012 at 9:34pm.

Consider the following equations.
N2H4(l) + O2(g) N2(g) + 2 H2O(l) H = -622.2 kJ
H2(g) + 1/2 O2(g) H2O(l) H = -258.5 kJ
H2(g) + O2(g) H2O2(l) H = -187.8 kJ
Use this information to calculate the enthalpy change for the reaction shown below.
N2H4(l) + 2 H2O2(l) N2(g) + 4 H2O(l) H = ?


I got -764.kj. ia that correct?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chem- i reallyneed help - Consider the following equations. N2H4(l) + O2(g) N2(g...
Chemistry - Hydrazine, N2H4, is a colorless liquid used in rocket fuel. What is ...
Chemistry(Please check) - Which of the following equations correspond to the Ka2...
CHM - Need help please Which of the following equations has the coefficients 2,1...
Chemistry (URGENT) - Balance the following equations. 3. C12H22O11 + O2 = CO2 + ...
Chemistry - I'm having a hard time balancing the following chemical equations...
CHEMISTRY - Consider a 58.4 g sample of H2O(g) at 125C. What phase or phases ...
Chemistry - Write formula equations and net ionic equations for the hydrolysis ...
chemistry - Balance each of the following equations a)CH4+CL2......>CCl4+HCl...
chemistry - Some spacecrafts use hydrazine (N2H4) as fuel and is burned ...

Search
Members