units to know for midterm

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Alexa Pham 1D
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Joined: Wed Sep 30, 2020 10:03 pm

units to know for midterm

Postby Alexa Pham 1D » Wed Oct 21, 2020 2:36 pm

I remember that in one of Dr. Lavelle's past lecture (Week 1, I believe), he went over the SI unit prefixes. For example, G (giga), M (mega), p (pico), etc. Do we have to memorize all these prefixes or only a select few? I'm worried that I won't be able to calculate things correctly on the midterm if I don't remember the values of the prefixes.

Chem_Mod
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Re: units to know for midterm

Postby Chem_Mod » Wed Oct 21, 2020 2:47 pm

Dr. Lavelle has a constants and equations sheet that he will give students during the exam; this sheet can be found on his website. On the sheet, there are a few SI unit prefixes listed, so you will not need to memorize those. As for the other prefixes, you will most likely not need to memorize them since Lavelle usually gives all the information needed on the exam. Otherwise, you can ask the proctoring TAs what it means.

Hope this helps!

Helena Hu 3E
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Joined: Wed Sep 30, 2020 9:35 pm

Re: units to know for midterm

Postby Helena Hu 3E » Wed Oct 21, 2020 2:52 pm

Like what the moderator said, I don't think you will need to know them as this class is about application, not memorization. However, if you are really curious, there was a great past thread where people showed what acronyms they used to help memorize them. There is a great explanation there on how to utilize them properly.
viewtopic.php?f=8&t=63706
hope this helps!

Simer_Shera_2D
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Re: units to know for midterm

Postby Simer_Shera_2D » Wed Oct 21, 2020 3:21 pm

I think we likely have to know the common ones like nano, pica, micro, milli, centi, kilo but I noticed on the constants sheet that he gives us the oddball ones like eV.

ShinwooKim_3E
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Re: units to know for midterm

Postby ShinwooKim_3E » Thu Oct 22, 2020 5:22 pm

I would remember them just in case (I also remember memorizing them as a mandatory assignment for my past high school)!

IreneGi2I
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Re: units to know for midterm

Postby IreneGi2I » Sun Oct 25, 2020 6:28 am

Those that are used frequently (like pm, nm, angstrom) are written on constant sheet (on Chemistry website). I recommend you to look that up!

keely_bales_1f
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Re: units to know for midterm

Postby keely_bales_1f » Sun Oct 25, 2020 2:26 pm

On the constants and equations worksheet from Professor Lavelle's chem14a website, there is something listed as "1 atm = 101.325 kPa"
Could someone please explain what this means?

josephspindler2H
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Re: units to know for midterm

Postby josephspindler2H » Sun Oct 25, 2020 4:47 pm

keely_bales_2a wrote:On the constants and equations worksheet from Professor Lavelle's chem14a website, there is something listed as "1 atm = 101.325 kPa"
Could someone please explain what this means?

We haven't gotten to this section of chemistry (pressure) yet, so you do not have to worry about it for the upcoming midterm. An "atm" is a standard atmosphere, a unit of pressure. A kPA is a kilopascal, another unit of pressure.

David Liu 1E
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Re: units to know for midterm

Postby David Liu 1E » Sun Oct 25, 2020 7:42 pm

does anyone know if we just use the equation sheet from his website, or will he email another sheet out? I remember someone telling me that their TA said Lavelle would email one for us to print for this test specifically

Dane_Beasley_1E
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Re: units to know for midterm

Postby Dane_Beasley_1E » Sun Oct 25, 2020 8:45 pm

My TA let us know that we can print out the constants and equations sheet on Professor Lavelle's website for the test. We can also print out the periodic table on his website to use on the test.

905579227
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Joined: Wed Sep 30, 2020 10:01 pm

Re: units to know for midterm

Postby 905579227 » Sun Oct 25, 2020 11:37 pm

Do you guys know what will be allowed on the midterm? Also do we have to memorize the conversions or will that be provided.

Chinmayi Mutyala 3H
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Re: units to know for midterm

Postby Chinmayi Mutyala 3H » Sun Oct 25, 2020 11:43 pm

905579227 wrote:Do you guys know what will be allowed on the midterm? Also do we have to memorize the conversions or will that be provided.


The conversions will be provided. I would say you should memorize the electromagnetic spectrum and the prefixes like giga- , mega- etc.


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