Number of results: 62,363
science (chem)
an addition to this is Why doesn't my lab in organic chem use plastic pipettes? Is it going to react with the organic solvent if you do use it instead of glass? And it's kind of annoying that the liquid in the pipette has a tendency to go into the bulb while I'm ...
Sunday, September 9, 2007 at 10:16pm by ~christina~
science(chem)
Indicate the correct waste container for the following compounds choices are halogenated organic, nonhalogenated organic, aqueous, and organic solid a)hexane b)methylene chloride (dichloromethane) c)magnesium sulfate d)10% NaOH e)sodium hypochlorite for d)10% NaOH would it be ...
Sunday, September 2, 2007 at 4:49pm by ~christina~
9th grade science
Carbs are organic. Lipids are organic. Proteins are organic.
Thursday, January 8, 2009 at 5:37pm by DrBob222
science (chem)
The easiest way is to look up the densities of the organic layer and water. But you already know the density of water as 1.00 (at least close enough). The organic layer will be on top if it is less dense and on bottom if it is more dense.
Sunday, September 9, 2007 at 2:39pm by DrBob222
Science (Organic chem)
You don't provide enough information to know what you are doing or what you want.
Monday, April 26, 2010 at 11:11pm by DrBob222
Organic substances
Is adhesive tape organic or inorganic? Also are shoes organic? I think they might, be but Im not so sure. Are paper clips organic? They are made of some type of metal, but I don't think they are organic. Is an mp3 organic?
Saturday, October 2, 2010 at 6:52pm by Anonymous
organic chem
Suggest a synthesis for olivetol from benzene and any necessary organic and/or inorganic reagents.
Tuesday, April 26, 2011 at 5:14am by lauder
organic chem
organic chemistry lab and why is water the first choice for recrystallization when all factors are equal?
Monday, October 11, 2010 at 12:06am by sharon
Science organic chem
Yea, I'm talking about the experiment Nino said.
Tuesday, April 27, 2010 at 3:07pm by Dana
science (chem)
I'm actually doing a homework assignment where you have to draw the structure into program...it's killer..I drew it with the double bond and the computer said incorrect. It's for organic chem. I'll try the triple bond and see what happens...I don't like ...
Friday, August 31, 2007 at 10:01pm by ~christina~
science (chem)
I'm actually doing a homework assignment where you have to draw the structure into program...it's killer..I drew it with the double bond and the computer said incorrect. It's for organic chem. I'll try the triple bond and see what happens...I don't like ...
Friday, August 31, 2007 at 10:01pm by ~christina~
Science organic chem
You need to tell us specifically what experiment you are talking about and the equilibrium you have.
Tuesday, April 27, 2010 at 3:07pm by DrBob222
science (chem)
If they are in a sep funnel, you have no choice except to pull the bottom layer off first, then the top layer next. After they are in two separate containers, adding some organic solvent to both will tell you (using organic solvent instead of water gets around the objection in...
Sunday, September 9, 2007 at 2:39pm by DrBob222
Science (Organic chem)
NO and NO2 are the nitrogen oxide gases being produced. Give the balance equation for both.
Monday, April 26, 2010 at 11:11pm by Dana
Science organic chem
why should you stop the reflux when the nitrogen dioxide (red gas) is no longer evolving? What is the concept of equilibrium?
Tuesday, April 27, 2010 at 3:07pm by Dee
CHEM organic chem
Responded above to a later repost.
Tuesday, November 13, 2007 at 6:18pm by DrBob222
O.CHEM -> PLEASE CHECK!!
Thank you...good to know, but isn't there a "Dr.Russ" that works with Organic Chem??
Wednesday, March 12, 2008 at 9:48pm by K
science (chem)
Some of the plasic pipets are soluble in some organic solvents.
Sunday, September 9, 2007 at 10:16pm by DrBob222
organic chem
cadaverine is AKA pentane-1,5-diamine
Tuesday, April 26, 2011 at 5:18am by chem
organic chem
cadaverine is AKA pentane-1,5-diamine
Tuesday, April 26, 2011 at 5:18am by chem
science(chem)
I was thinking that they were the same but wasn't sure since the examples in the program were only of flipping the structure vertically not horizontally and I wanted to be sure since I haven't done organic chem in a long time. If it was a constitutional isomer wouldn&#...
Friday, August 31, 2007 at 10:31pm by ~christina~
Science (Organic chem)
What is the mechanism for the following: 1)KOH in alchohol phenanthrene-9,10-dione -------------> 2) H^+ 9-hydroxy-9H-fluorene-9-carboxylic acid
Tuesday, April 27, 2010 at 5:51pm by Dana
organic chem
extraction lab: suppose that aqueous and organic (diethyl ether) layers were not mixed thouroughly predict the effect that this would have on the results in your answer, consider melting point temperature of benzophenone thx
Wednesday, June 16, 2010 at 8:44pm by jay
science(chem)
I'm now thinking that for methylene chloride and sodium hypochlorite they would go in halogenated organic waste bottle b/c they have Cl but this may be wrong...
Sunday, September 2, 2007 at 4:49pm by ~christina~
Organic Chem
Potassium tert-butoxide is a common base for E2 reactions because it is _______. A. weak base B. an organic base C. a strong base D. a bulky base
Friday, March 6, 2009 at 5:09am by nilee
9th grade SCIENCE
I have to list 5 different organic compounds; list different types for each; name; structure; properties; and uses. I am a bit confused as to what an organic compound actually is. I know it must contain a carbon, but would vegetables or household foods be considered organic ...
Friday, February 26, 2010 at 3:56pm by 6739
Science organic chem
she is talking about conversion of benzaldehyde to benzilic acid. in a second part of the experiment where you convert benzoin to benzil, during the reflux, red gas is evolving
Tuesday, April 27, 2010 at 3:07pm by Nino
Science
why do plastics have to be separated before recycled? Like different kinds of plastics are seperated by why? Im on the organic chem unit right now.
Thursday, April 8, 2010 at 8:18pm by Lena
Science (Organic chem)
for futre referrence for kids my ag struggleing to do there homework ask a techer mom dad or look up the book or the name of work sheet and find the answers
Monday, April 26, 2010 at 11:11pm by ????nicole????? <3
Chemistry
P.S. I have heard that you are either a Gen Chemist or an Organic Chemist. (I am hoping to heck I am an organic chemist! But, I did well in Gen Chem, thanks in part to you.)
Sunday, May 13, 2012 at 6:39pm by Miaow
science (chem)
solvents? Methylene chloride n-butyl chloride n-butyl bromide saturated aqueous sodium bromide the last 3 are just to let us determine which is a organic layer when mixed with water, I also have to determine which is the organic layer when the 2 last ones are mixed too. I have...
Sunday, September 9, 2007 at 2:39pm by ~christina~
Organic Chemistry
I looked in my organic chem book (an old one), found the index, found ketones, looked under preparation, found two pages of preps. CH3CH2CH(OH)CH2CH3 + K2Cr2O7 ==> CH3CH2COCH2CH3
Wednesday, April 7, 2010 at 7:08pm by DrBob222
Science
What is the difference between organic and inorganic compounds? Carbon. Organic compounds are all carbon compounds, except CO2. http://dictionary.reference.com/browse/organic%20compounds
Friday, August 17, 2007 at 8:49pm by KK
Chem II
No, it's the number of particles in the solution. For example, NaCl would have i = 2 (for 1 Na+ + 1 Cl-), Na2SO4 would have i = 3. MOST organic molecules, and that's usually the scenario with these two formulas, i = 1 becuase the organic molecules don't ionize in ...
Thursday, February 14, 2008 at 3:56pm by DrBob222
chem
There are two ways to do this. 1. Ko/a = concn organic/concn aq and do that three times, taking the answer from the previous extraction to use for the new extraction. 2. Or you can do all of it at one time with fn = [(1 + Kd*(Vo/Va)]-n where fn = fraction solute REMAINING in ...
Monday, February 8, 2010 at 3:34pm by DrBob222
chem - pressure
A closed vessel with volume of 226.9mL initially contained air at 680.8mmHg at 16.5 degrees celcius. A sample of an organic liquid of mass 0.113g was injected into the flask which was then warmed to 124.9 degrees celcus causing all the organic liquid to vaporise. The final ...
Wednesday, March 31, 2010 at 4:00am by T
Organic Chemistry
1. Why is diethyl ether a good choice for an organic solvent? 2. Why doesn’t the neutral organic compound dissolve in 1.5 M sodium hydroxide solution?
Tuesday, November 4, 2008 at 12:15am by Dora
science
no one is exactly sure of how life came to be, but one theory is supported by the miller-urey experiment (research it if you're interested) the theory is about how life came to be from inorganic material on the young earth that was synthesized into organic material. though...
Saturday, March 12, 2011 at 2:15am by gin
Chemistry
Why was the term "organic" originally chosen? Give an example of an original organic substance. My answer: The term organic was originally chosen because early chemists believed that certain chemicals were only found in living organisms. These chemicals were called ...
Saturday, October 2, 2010 at 6:37pm by Anonymous
Organic chem
Why can't anybody help me?
Monday, April 5, 2010 at 10:20am by Alice
organic chem
thank you!
Wednesday, March 31, 2010 at 7:57pm by karlene
chemistry
Does anybody know any websites that there are chemistry labs that could possibly be used in a CSI investigation? I can’t find anything. http://antoine.frostburg.edu/chem/senese/101/organic/faq/amino-acid-test.shtml
Saturday, February 24, 2007 at 5:32pm by Ron
Science
In a wheelbarrow, you have 2 kilograms of soil for your garden. If 8 percent of it is organic matter( decayed materials from organisms), how many grams of organic matter do you have?
Thursday, February 28, 2008 at 4:04pm by Dee
science (chem)
What would the best way to determine the organic layer from the aqueous layer in a extraction procedure? ~would it be to add a few drops of water to each layer and see what happens? or is there a better way since this procedure of adding a few drops of water to the extraction ...
Sunday, September 9, 2007 at 2:39pm by ~christina~
organic chem
Didn't know that you answered.
Thursday, February 21, 2013 at 8:47pm by Devron
ORGANIC CHEM I
123
Monday, April 11, 2011 at 11:35am by Anonymous
More Organic Chem.
yes
Monday, February 5, 2007 at 7:52pm by j-nie
Organic Chem
for #2 is chloroethane
Wednesday, January 26, 2011 at 4:00pm by sam
organic chem
its d i think
Thursday, August 5, 2010 at 11:56pm by Willy
Organic chem
methanol*
Saturday, February 20, 2010 at 12:37pm by Kim
Organic Chem
D
Friday, March 6, 2009 at 5:09am by Dr Russ
organic chem.
rtrt
Sunday, November 30, 2008 at 11:48pm by frtt
More Organic Chem.
=]
Monday, February 5, 2007 at 7:52pm by kaur
Organic Chem
would it be: "A"??
Sunday, February 3, 2008 at 3:54pm by Dawn
Organic Chem
ok thnx
Sunday, November 25, 2007 at 12:55pm by AllyKat
organic chemistry
First, this doesn't look like an organic chem question to me. I don't know any organic chemistry but this one I can work. moles NaOH = Molarity NaOH x liters NaOH = ? Convert moles NaOH to moles H2SO4 this way. ?mols NaOH x (1 mole H2SO4/2 moles NaOH = ?moles NaOH x 1/...
Tuesday, January 31, 2012 at 10:01pm by DrBob222
organic chem
Replace the 3's with 2's. Did it again.
Wednesday, February 20, 2013 at 9:52pm by Devron
Organic Chem
Your answer is correct.
Tuesday, October 5, 2010 at 9:08pm by Daniel
organic chem
more gradually than what?
Tuesday, September 6, 2011 at 10:32am by bobpursley
organic chem
For safety reasons.
Thursday, September 1, 2011 at 11:05pm by DrBob222
Organic Chem
4-nitro-veratrole
Tuesday, March 2, 2010 at 3:44pm by brian
organic chem
A. Section 25.2
Thursday, August 5, 2010 at 11:56pm by Willy
Organic Chem
see above
Monday, September 7, 2009 at 12:05pm by DrBob222
Organic Chem
I think that it might be "c"?????
Sunday, February 3, 2008 at 7:27pm by Dawn
Biology
Thank you for using the Jiskha Homework Help Forum. Since you didn't get an answer last night, here are some things: 1. http://en.wikipedia.org/wiki/Organic_compound 2. http://www.okc.cc.ok.us/biologylabs/Documents/Organic%20Compounds/Organic%20Compounds.htm 3. (Chem.) ...
Sunday, September 30, 2007 at 10:48pm by SraJMcGin
Organic chem 1
What is cyclopentane with a butane called?
Monday, March 11, 2013 at 1:18pm by Jenni
organic chem
See your other post.
Thursday, February 21, 2013 at 8:52pm by DrBob222
organic chem
Yes, you forgot the ethyl group.
Wednesday, February 20, 2013 at 8:13pm by Devron
organic chem
You are asking for a lot, but give me a minute.
Wednesday, February 20, 2013 at 8:13pm by Devron
organic chem
ok, then just name the amide
Wednesday, February 20, 2013 at 8:13pm by meghan
organic chem
I can not draw structures on this forum.
Wednesday, February 20, 2013 at 8:13pm by Devron
organic chem
But if it is an acid, you should get 3-methylheptene
Friday, February 8, 2013 at 8:11pm by Devron
Organic Chem
What is the product of C13H10+CH3O
Wednesday, September 19, 2012 at 12:09am by Kaila
Organic Chem
The result is a peptide bond.
Thursday, January 27, 2011 at 2:31am by Diana
O.CHEM -> PLEASE CHECK!!
Our regular chemist expertm DrBob222, is taking a vacation for a week, so it is quite likely that no one will be available to help you with your organic chem questions. Thank you for using the service, and I hope that you will continue to do so. Perhaps another person using ...
Wednesday, March 12, 2008 at 9:48pm by drwls
organic chem
I know you can't draw them but the names would be appreciated
Saturday, March 9, 2013 at 3:28pm by Anonymous
organic chemistry II lab NMR
C
Friday, October 12, 2012 at 9:19pm by Dr O-Chem
organic chem
O-and everything else I should be connected to the CH
Wednesday, February 20, 2013 at 9:52pm by Devron
organic chem
oxidation product for 3-methyl-1-heptanol
Friday, February 8, 2013 at 8:11pm by meghan
Chem-organic, bio, intro
nitrogen in torr
Sunday, October 16, 2011 at 3:20am by Anonymous
ORGANIC CHEM LAB
Please! What is the answer? Enlighten me!
Monday, September 26, 2011 at 11:53pm by Anonymous
Organic Chem
How would I assign priority to 1,2-dimethylcyclopropane?
Tuesday, November 1, 2011 at 6:52pm by Jay
ORGANIC CHEM LAB
Nevermind! Figured it out :)
Monday, September 26, 2011 at 11:53pm by Anonymous
organic chem
Cover it. It can't burn without oxygen.
Thursday, September 1, 2011 at 9:21pm by DrBob222
organic chem
its difficult recognizing what rxn to use
Tuesday, April 26, 2011 at 3:52am by mie
organic chem
Suggest the syntheses of cadaverine from 1,5-Dibormopentane
Tuesday, April 26, 2011 at 5:18am by lauder
organic chem
Suggest a synthesis of 2,4,6-trinitrofluorobenzene from benzene
Tuesday, April 26, 2011 at 5:15am by lauder
ORGANIC CHEM I
hOW MANY POSSIBLE STEREOISOMERS DOES MENTHOL HAVE ?
Monday, April 11, 2011 at 11:35am by JAM
Organic Chem I Lab URGENT
PLEASE assist
Tuesday, November 30, 2010 at 4:06pm by Meredith
organic chem
See other reply
Monday, October 11, 2010 at 12:06am by Dr Russ
organic chem
sorry i think i messed up
Thursday, August 5, 2010 at 11:56pm by Willy
Organic Chem
4,2,3-5,1 Three and five equivalent so overlap.
Monday, April 19, 2010 at 1:54pm by Billy
Organic chem
Oxymercuration/reduction? Not sure anymore...
Wednesday, November 4, 2009 at 12:04am by jeff
Orgo
you got it right in the search. Organic Chem
Monday, October 5, 2009 at 10:04am by Carrie
Organic Chem
Why is Diels Alder reaction stereospecific?
Monday, February 18, 2008 at 11:09pm by Delly
Organic Chem
organic chemistry lab and why is water the first choice for recrystallization when all factors are equal? Not quite sure what you mean by "all factors are equal" On the plus side: water is cheap, water can easily handled with out PPE, pH is easily adjusted, dissolves...
Monday, October 11, 2010 at 12:08am by Dr Russ
science (chem)
Oh my...so it isn't just me. Yes that's what I'm refering too except we have our own rubber bulbs we can attach to the disposable glass pipettes. However these don't have any numbers on them or anything they're just glass tubes. I'm afraid of taking out...
Sunday, September 9, 2007 at 10:16pm by ~christina~
organic chem
Oh ok thank you. Sorry, I'm really dumb when it comes to this stuff :)
Wednesday, February 20, 2013 at 9:52pm by meghan
organic chem
3.) Phenol 2-ethylpentanoate Sorry about that one.
Wednesday, February 20, 2013 at 9:52pm by Devron
organic chem
Ok thank you so much I'm going to try to attempt the others.
Wednesday, February 20, 2013 at 8:13pm by meghan
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