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[06 Apr 2005|08:23pm]

If anyone wants to be ever so kind and type up the first 3 requirements for fats in our lil presentation rubric....I would b happy to bring them breakfast or sumthin in the morning as compensation for their time and troubles.

So yea thanks in advance...I guess
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[10 Mar 2005|06:41pm]

on account of no one ever posting here, i would like to congratulate the people that went to chem-a-thon. we cleaned up well..

three cheers for both chemistry teams for winning like mad
and of course to the rest of us that did well.

we rock.
ha ha

in addition, Hi Mr. Schnippert(spelling not being judged here):
we were unaware that teachers understood livejournal/the internet.
kidding, though only slightly
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[08 Jan 2005|03:02pm]
Were we given a Chapter 9 or Chapter 7 packet to go along with the exercises in the Chapter 10 packet for this unit?
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balancing equations [30 Dec 2004|01:18am]

[ mood | confused!! ]

When given a problem like Cu + H2O(g)-> how do I solve it? Is there a process to find out what type of reaction happened? I also had the problem of balancing correctly, but the reaction I wrote couldn't happen in real life (e.g.: I thought KClO3-> became 2KClO3->K2+2ClO3, so I got it wrong because i found out it can't happen). Which rules would help me avoid that from happening again? even some good links would be greatly appreciated, because I'm so confused! Please help me! :(

Here's some examples from a packet that could be used if needed. the answers are below, but i couldn't understand how to be able to find them on a test:

Write correctly balanced equations for these expressions:
1) KClO3 ->
2KClO3 -> 2KCl+3O2

2) KBr + MnO2 + H2SO4 ->
2KBr + MnO2 + 2H2SO4 -> 2K^(+1) + Br2 + Mn^(2+) + 2H2O + 2SO4^(2-)

3) AgCl(s) + NH3(aq)
AgCl(s) + 2NH3(aq) -> Ag(NH3)2^(+1) + Cl^(-1)(aq)

4) Cu + H2O(g)
Cu + H2O(g) -> Cu^(2+)(aq)

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[16 Dec 2004|04:07pm]

what did everyone get this nine weeks. there is an overwhelming amount of Ds this time around. im guessing that over 80% of the class got a C or lower.

this is not right. we know way too much chemisty to diserve those grades
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[06 Dec 2004|10:27pm]

does anyone think that missy will postpone the organic test due to the fact that she

a) has not given us back our quizzes
b) hsa no completed the notes
c) promised us a day of review and problems

if she doesnt im rebelling. i say we all protest the test.
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[07 Nov 2004|06:51pm]

The Thermochemistry test. Is that tomorrow or Tuesday?
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[15 Oct 2004|07:28pm]

so yea...

it would b super cool if someone would post the homework that is due Monday, seeing how I was intelligent enough to forget about going to my locker to get my chem stuff.

so pretty much anyone who posts it will b deserving of my undying love for the rest of the month.

Love, Danielle
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i spent my APUSH study period doing chemistry. [04 Oct 2004|04:28pm]

[ mood | going crazy ]

yeah so for the uninformed, without a doubt the Topic Six work is in fact due tomorrow morning. yes folks thats book work, packet, AP questions and tasks. please ladies lets not forget the fact that it requires 4 excel graphs... alright must stop venting and get this crap done.

</3 danni

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[22 Sep 2004|09:01pm]

It's high time someone update this thing.

September 27: Topic 5 Test & homework due
October 1: Quarter Exam

Upcoming Labs: Chloride Determination in Salt Water; Analysis of Concentration of NaCl in a Product

& I was looking at the task sheet for Topic 4 & saw
Be able to convert empirical formulae to molecular formulae by using RMM data.
I'm probably just having some kind of brain fart, but what's RMM?
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[30 Aug 2004|04:50pm]

three cheers for the revised schedule::

tuesday: silver alloy lab due
wednesday: ratio of moles lab due
thursday: synthesis of Al lab due plus topic four quiz number dos
friday: analysis of Al lab due

no school monday

tuesday: work due and test topic four
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[29 Aug 2004|02:29pm]

[ mood | stressed ]

things have been resolved. the silver alloy lab isnt due till tuesday. she mentioned it in the powerpoint and then yelled it at the end of class. thank god. Synthesis lab is indeed tomorrow so ya better write that up. easier said than done without a lab book at home. lol fast writing shall prevail

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[22 Aug 2004|04:04pm]

[ mood | productive ]

OK here are the questions for the lab.....on request from Danni

1) What happened to the number of dots per unit area as the distance from the center increases?

2)Using Excel plot a graph of your results. on the x-axis plot average distance from the center, on the y-axis the number of dots per cm2.

3)Based on your graph what is the distance from the nucleus with the highest probability of finding a dot?

4) How many dots are actually located in the ring that includes the distance of highest probability?

5) What, in general, can be said about the likelihood of finding a 1s electron in the 1s orbital, as the distance from the nucleus increases?

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Chem Links [21 Aug 2004|06:02pm]

Here are some useful chem links....

A website with alot of tutorials as well as chem tests and quizzes.

Compilation of Many Chemistry Tutorials

Good Online Periodic Tables


Flinn Scientific

Information on chemical elements and compounds

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Tasks for topic two for those who dont have it like danni [19 Aug 2004|10:48pm]

a) we did this one in class....
which of the following 4 statements describes isotopes?
the answer we did in class too. it is
ii) atoms of an element having different 3s of neutrons
iv) 90 SR 38 and 92 SR 38

b) (1) neon has three isotopes 22. 21, 20 with abundances of 8% 2% and 90% find relative atomic mass.
(2) rubidium 85 and 87 with ratio of 72:28 find atomic mass
(3) Ga 69 71 ratio of 62:38 calculate atomic mass
(4) Cl2 has massses of 70, 72, 74 ratio of 9:6:1 what is avg. atomic mass? wut is relative abundance of 35Cl and 37Cl isotopes?

c) (1)plot a graph for the table... here's teh table it's for lead in a radioactive reaction. plot graph and find half-life
time/ hour 0 1 5 10 25 50 75 100
cnt/minute 300 296 285 270 228 175 133 103
(2) t=26 days 1/16= final amount what is half-life
(3) Radon 1/2 life=36.0 min. what fraction of the original quantity remains after i) 360 min ii)1080 min.
(4) C^14 1/2 life= 5580 yrs 5g sample from newly cut lumber has 2.02 counts/sec. a 5g relic sample has a count of 1.81 counts/sec. find age of relic
(5) t=3hrs. initial count=1100 c.p.m final count=778c.p.m what is half life?

D)name and show the charge of the ions present in the ex)
i) NaCl
ii) SrO
iii) AlN
iv) BaCl2
v) K2 O (one compund 2 goes w/ the K)
vi) CuO
vii) Cu2 O (1 compound)
viii)Iron (III) Chloride

E) Write the formula or names for the following compuounds
i) Dinitrogen tetroxide
ii) N2O5
iii) PCl3
iv) Phosphorous pentachloride
v) SF6

thank you danielle for writeing this all out, and for darin for doing the lazy (but smart) thing of just scanning it to me. you both rock
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[19 Aug 2004|04:04pm]

ok guys we need to get something sorted out. for one this is a community for the NEW ap kids. i know you guys from last year have ties or whatever to the class, but bashing ms ray, or the class in general is not productive. I'm still trying to get this approved. if you want to do that, thats fine, just do it on stanton- not here. if there is something helpful that u guys want to say as comments to things thats fine, but guys ease up a wee bit on the drama
<3 danni
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[17 Aug 2004|08:32pm]

[ mood | tired ]

Hey guys first post. just putting this week's schedule up:

Monday: lab three (Conservation of mass)
thusday: notes topic three
wednesday: quiz topic three. notes
thursday: lab four (one passed out in class tuesday)
friday: Test unit one topics one, two and three

Monday: Lab Five (Buret)

all homework is due friday including the tasks given in class and on the powerpoint.

<3 danni

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