Chem Spring 2008

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Hi all,

Hoping to start a Chem study group for Spring 2008. I do not begin class until January 15th but figured I would see about getting a group together as soon as possible.

Bumping this back to the first page.

Hoping to find out tomorrow how I did on my second exam on Wednesday night. Will let you all know if the instructor gives us our results.

GOOD LUCK! With all you been thru you deserve a good grade! Hope you are feeling better. I've been studying soo much Chem I actually dream about when I go to bed...or are those nightmares? We have quizzes every week and I bombed my Monday one. I got a 3/10. I didn't understand the chapter and was soo stoked about my test B that I didn't go back to figure it out. So that's what I had to do last nite. I'm pretty comfortable balencing equations but when it comes to calculating molar mass I get confused on what they are actually looking for. I'll just have to keep going over my notes. Now we're doing nucular chemistry....

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Bumping this back to the first page.

Hoping to find out tomorrow how I did on my second exam on Wednesday night. Will let you all know if the instructor gives us our results.

I'll be finding out tonight how I did on my second test, and I'm really nervous about it. :uhoh3:

The second test was awful. It wasn't all that hard, per se. It was just extremely time consuming and required a lot of focus and patience. It didn't help that she told us the test should only take us about 30 minutes. Well, as far as I could tell, only about two people finished in that amount of time. It took me over an hour, and I'm normally a very fast test taker. When I finished, half the class was still there working on the test. I was so drained after I was done. It took a lot out of me. :bugeyes: Reminded me of the feeling I'd get after some of my three hour law school finals.

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Specializes in Telemetry and Psych.
good luck! with all you been thru you deserve a good grade! hope you are feeling better. i've been studying soo much chem i actually dream about when i go to bed...or are those nightmares? we have quizzes every week and i bombed my monday one. i got a 3/10. i didn't understand the chapter and was soo stoked about my test b that i didn't go back to figure it out. so that's what i had to do last nite. i'm pretty comfortable balencing equations but when it comes to calculating molar mass i get confused on what they are actually looking for. i'll just have to keep going over my notes. now we're doing nucular chemistry....

thank you itsa! only a few more hours til class....:bugeyes: this sentence cracked me up.....

"i've been studying soo much chem i actually dream about when i go to bed...or are those nightmares?"

:yeah::lol2: i soooooo know what you are saying!! thats how i've been feeling lately. it's either chem or bio..lol.

we just started on balancing equations..i'm afraid to get to molar mass and nuclear chemistry...ugh!!!

i'll be finding out tonight how i did on my second test, and i'm really nervous about it. :uhoh3:

the second test was awful. it wasn't all that hard, per se. it was just extremely time consuming and required a lot of focus and patience. it didn't help that she told us the test should only take us about 30 minutes. well, as far as i could tell, only about two people finished in that amount of time. it took me over an hour, and i'm normally a very fast test taker. when i finished, half the class was still there working on the test. i was so drained after i was done. it took a lot out of me. :bugeyes: reminded me of the feeling i'd get after some of my three hour law school finals.

are we in the same class? lol. that's how it was for my class as well. a few people were able to finish the test in a half an hour....while i was one of the last ones to leave...hmmmm.

"it took a lot out of me. :bugeyes: reminded me of the feeling i'd get after some of my three hour law school finals."

wow....3 hours! i think i would be crying after an hour and a half.

good luck on our results tonight!!:nurse:

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Specializes in Telemetry and Psych.

Got my test back tonight....I am so happy to report...I got a 92!! Very happy with this grade!

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Got my test back tonight....I am so happy to report...I got a 92!! Very happy with this grade!
That's great!! Congrats! :yeah:

I got mine back tonight, too, and I'm very happy with my grade as well. :D

We also got our midterm grades, and I'll have an A average so far, so I'm pretty stoked.

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Got my test back tonight....I am so happy to report...I got a 92!! Very happy with this grade!

EXCELLENT JOB!

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We also got our midterm grades, and I'll have an A average so far, so I'm pretty stoked.

I'm soo jealous! Good Work!

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We also got our midterm grades, and I'll have an A average so far, so I'm pretty stoked.

I'm soo jealous! Good Work!Yeah, I've got to keep it up, though. Now we're doing the really hard stuff. :uhoh21:

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Specializes in Telemetry and Psych.

Congrats on your midterm grade!!! Yeah...happy dance happy dance!

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Hi everyone. Can anyone help me figure out this crazy Aufbau chart? I hope I'm just making it more difficult than it really is, but I just don't get it.:bugeyes:

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Specializes in Telemetry and Psych.
Hi everyone. Can anyone help me figure out this crazy Aufbau chart? I hope I'm just making it more difficult than it really is, but I just don't get it.:bugeyes:

ok..i'm going to give it a shot here....hopefully it will make sense..lol.

s orbital will always have a maximum of 2 electrons

p orbital will always have a maximum of 6 electrons

d orbital will always have a maximum of 10 electrons

f orbital will always have a maximum of 14 electrons

Lets try with an element first.... P - Phosphorus. When looking at the periodic table you see that P's atomic number is 15. So taking the 15, you figure out the electron configuration...

P = 1s(2), 2s(2), 2p(6), 3s(2), 3p(3) The number in the ( ) is the small number of electrons per shell. When you add the ( )'s all together it equals 15.

When using the Aufbau chart....I'm not sure if your teacher gave you a simpler chart to follow. Here is one that I found on the internet that is similar to the one we received in class.

The easiest way to follow it is to follow the arrows.....

C8F3M.GIF

so taking another element, Co (Cobalt), the atomic number is 27. The electron configuration for cobalt is:

1s(2) 2s(2) 2p(6) 3s(2) 3p(6) 4s(2) 3d(7).

Adding all the ( )'s together you get 27.

When doing the arrow's thing...i can't remember the technical name for it..lol sorry....you would have:

1s(2) - one arrow up, one arrow down

2s(2) - one arrow up, one arrow down

2p(6) - 3 arrows up, 3 arrows down

3s(2) - one arrow up, one arrow down

3p(6) - 3 arrows up, 3 arrows down

4s(2) - one arrow up, one arrow down

3d(7) - 5 arrows up, 2 arrows down. The reason for 5 arrows up and 2 arrows down is because you have to fill each orbit once around before having an arrow down.

I hope this made sense and helps. Let me know if i'm totally confusing you. Good luck. :wink2:

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Thanks Alli, I just need to copy that information and take it with me to my exam! I wish I could get away with it. Here's another one for you (or anyone else)... Is there an "easy" way, or even just at really good way... to remember solubility rules?? :o Oh my goodness. Between chemistry and A&P my brain is turning to mush!

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