Enthalpy Change for the Decomposition of Ammonium Chloride: This is my last lab

Question

Enthalpy Change for the Decomposition of Ammonium Chloride:

This is my last lab of the semester if anyone can help me I would appreciate it SO much (best answer and 5 stars) (i've put hours into this and still can't figure it out, please help me)

1. Write out the reaction NH4Cl(s) -> NH3 (g) + HCl(g) as a series of steps which include the reactions observed in Procedures 2 and 3.

Use the known enthalpies for the change of state of NH3 and Hcl, given below.
NH3 (g) -> NH3 (aq) (?H = -34,640 J/mol)
HCl (g) -> HCl (aq) (?H = -75,140 J/mol)

Be sure to show how the reaction steps must proceed so that delta H for the desired reaction can be calculated. And be careful to use the positive or negative enthalpy values depending on the direction of the reactions that you add together.
Use the known enthalpies for the change of state of NH3 and Hcl, given below.

please provide explanation I don't understand it at all.

I have all the lab data but chegg won't let me post it so I posted it here:

https://answers.yahoo.com/question/index?qid=20150511215133AAtAHAI

Explanation / Answer

Update: Part I

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.