## Self prep Question

martha-1I
Posts: 76
Joined: Fri Sep 26, 2014 2:02 pm

### Self prep Question

In Quiz 1 preparation (winter 2013) number 2 asks us to calculate $\bigtriangleup$H of the reaction Al(s) + NH4ClO4(s) ---> Al2O3(s) + AlCl3(s) + NO(g) + 6H2O(g). I was going to use the enthalpy of formation method to calculate $\bigtriangleup$H, but I could not find the $\bigtriangleup$Hf for 3 of the molecules in cover sheet. Is there another way to calculate the $\bigtriangleup$Hf for those molecules or will a longer list be given to us for the quiz?

Neil DSilva 1L
Posts: 70
Joined: Fri Sep 26, 2014 2:02 pm

### Re: Self prep Question

A few of our classmates have already asked this question. One of the original posts is linked here: https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=76&t=5078&sid=38898720bd519479c315c42e4fa70642.

For the quizzes in the workbook, you may use the appendices in the textbooks. If a similar question is asked on the actual quiz, we will be given all the information we need to solve the problem.

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