[CHM 112] the test on Tuesday

[Andrew J. Pounds]

On 07/02/2015 03:14 PM, wrote:
>
> Dr. Pounds,
>
> Can you let me know which formulas and constants will be provided on 
> the exam and which wont be? I have the ones we use a lot for sapling 
> memorized, such as: PV=nRT, but I still want to make sure I have 
> everything I need to know memorized.
>

I just e-mail the class a sample cover page with the formulas that you 
can expect on every exam.   I expect you to know the gas constant for R 
in the units we discussed in class as well as how to convert between 
celcius and kelvin.

> Can I also know the format of the exam?
>

The exam will be approximately half multiple choice and half worked out 
numerical problems.

> The exam will only consist of ch 18, 10, 11, and 13 correct?
>

Yes, the first 5 sections of chapter 18 and then the sections mentioned 
in the syllabus for chapters 10, 11, and 13.

> On Chapter 10 Burdge, number 72, how do you know that the mole 
> fraction gives the volume fraction?
>
Avogadro's hypothesis -- "equal volumes of gas contain equal number of 
gas molecules".  We can also state that as "equal volumes of gas contain 
equal moles of molecules".  Because of this we can use mole fraction and 
volume fraction interchangeably for gases.

Let me know if you need more clarification.
>
> Sorry that I forgot ask you all this eariler, I took too long on the 
> quiz and it slipped my mind.
>
> Thanks!
>
>


-- 
Andrew J. Pounds, Ph.D.  (pounds_aj at mercer.edu)
Professor of Chemistry and Computer Science
Mercer University,  Macon, GA 31207   (478) 301-5627
http://faculty.mercer.edu/pounds_aj

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