Monday
December 22, 2014

Search: Organic Chemistry-pls check

Number of results: 60,586

Chemistry (URGENT)
I have a test soon. If you can help me with these questions, that would be great. 1. Define and describe the following. a)Alkaline - metal - base b)Corrosive - burn/eat away - acid c)Caustic - harsh - both? (acid + base) d)Low pH - 0-6.99 - acid Please check my answers and ...
March 3, 2010 by John

chemistry
Pleas does any one know how to calculate the number of isomers of an organic compound. Any formula pls
March 28, 2014 by ogboyeb

Organic Chemistry-pls check
Which is the major product from acid catalyzed hydration (addition of water) of 2-methyl-2-pentene? a) 2-methyl-2-pentanol b) 2-methyl-1-pentanol c) 2-methyl-3-pentanol d) 3-methyl-3-pentanol answer: "c": 2-methyl-3-pentanol ???
February 24, 2008 by K

Chemistry :'(
(d) Which of the following sets of quantum numbers is not permitted? Select all that apply. 2,1,1,-1/2 1,1,0,-1/2 2,-1,1,-1/2 3,2,1,1/2 Pls pls pls help me :( x
November 18, 2012 by Anonymous

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?
October 2, 2010 by Anonymous

Organic Chemistry
1. Why is diethyl ether a good choice for an organic solvent? 2. Why doesnt the neutral organic compound dissolve in 1.5 M sodium hydroxide solution?
November 4, 2008 by Dora

Organic Chemistry
Does anybody know of a website that explains organic nomenclature ? ...something along the lines "organic nomencluture for Dummies" would be great :-) I'm stuggling to underatand "Z-3-Bromo-6-methyloct-3-ene" let alone draw it ! Here is a site that might just be what you are ...
March 12, 2007 by WeatherGirl

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 organic ...
October 2, 2010 by Anonymous

social studies---check 1 question pls
6. Whose mill launched the factory system? (1 point) James Monroe Eli Whitney ***Samuel Slater*** Francis Cabot Lowell help pls
January 29, 2014 by TTR+S<3

organic chemistry
Why is that absolute ethanol be used in preparing an ester with ethanol as one of the reactants? My Guess: It will cause hydrolysis of the ester as it is formed in the reaction vessel. Is this reasoning right? Pls. I need help about this...
March 1, 2008 by PIN

math
how would I check this on my own? I know you put numbers in the place of the letters but when I do that I come up with my moms answer. this is what i have when I check my work. p=-2 q=3 6*(-2)*3 =-36 but 3(-2)(-2*3)=36 could you tell me what i'm doing wrong when I check them ...
October 22, 2010 by TiffanyJ

maths permutation & combination - answer pls check
Your password for a given website is made up of three letters followed by four numbers. Find the number of possible passwords if there are no restrictions on what three letters and what four numbers can be used. Pls check if my answer is correct 26C3*10C4 =26!/(26-3)!3! . 10...
April 13, 2008 by matt

organic Chemistry
In my Organic chemistry lab, the calculated enantiomeric excess was over 100% . Is this possible? and If not, what sort of error could have been made? *the observed optical rotation was read correctly
November 23, 2009 by jenny

science
pls. pls. pls. somebody help me...you see im on a science class and i don't want to go to the regular section, so pls.... give me an acrostic for the word "SCIENCE"
June 11, 2008 by chris

Chemistry
rank the following atoms and ions in the order of expected increasing radius: Ca, Ca2+, Ar Pls pls help me kindly... Anyone?
November 18, 2012 by Anonymous

Math
If you pass general chemistry, then you can take organic chemistry. You pass general chemistry. You can take organic chemistry. Let P = you pass general chemistry Let Q = you can take organic chemistry I came up with P - >Q P therefore Q But my set up is wrong, how do I ...
January 21, 2011 by Madison

geography
hi,i have make a project on hurricane Katrina on disaster management pls help to get information pls pls help me............
June 17, 2010 by varsha

math(urgent)
$1000 was invested for two years at 10% simple interest .calculate the effective rate was earned. pls check my solve (1+0.1/2)^2-1 = 0.1025 but the true answer is 9.54% pls help me to get the formula of effective rate
May 16, 2014 by fizz

chemistry
Which of the following compounds are organic? Check all that apply. SO2 CH3F C8H18O Cu(NH3)6Cl2
November 7, 2014 by Shatoya

Organic Chemistry
2. Why doesnt the neutral organic compound (Flourene) dissolve in 1.5 M sodium hydroxide solution?
November 4, 2008 by Dora

CHEMISTRY> HELP QUICK! pls
I GOT THIS WRONG IN AN ASSIGNMENT. I HAVE AN EXAM IN 2 DAYS. CAN YOU SHOW ME HOW TO DO IT PLS. What is the pH of a 2.62 x 10 -1 M NaNO2 solution ? NB the pKa for HNO2 = 3.153. 12.13 13.42 1.87 8.29 0.58
June 4, 2010 by Lucinda

chemistry-organic
what happens when sodium benzoate is added to dichloromethane? what is the organic and aqueous layer of this product?
April 1, 2009 by Nancy

organic chemistry
Write equations showing how caffeine could be extracted from an organic solvent and subsequently isolated
April 16, 2013 by Kelli

Organic Chemistry
Explain why methanol and acetone are not suitable solvents for extracting organic compounds from aqueous solutions.
January 21, 2010 by Casey

organic chem
organic chemistry lab and why is water the first choice for recrystallization when all factors are equal?
October 11, 2010 by sharon

math pls help Ms Sue
could you pls check my math 6< s +7 -1<s -8.7<y + (-12.4) 21.1<y x + 17 > 10 -7 > x 11 > j + (-19) 30>j 24.3 > g- (-14.4) 38.7> g f + (-20) > -7 f > 30
December 3, 2012 by Kyle

organic chemistry
Explain why Grignard reagent cannot be prepared from an organic halide that contains a hydroxyl (-OH), a carboxyl (-COOH), a thiol (-SH), or an amino (-NH2 or -NH) group.
March 8, 2009 by Anonymous

Chemistry
Name two organic compounds that cannot be extracted effectively from an aqueous solution by means of an immiscible organic solvent such as diethyl ether or cyclohexane
January 22, 2012 by Leesa

Finance
Omega Instruments has budgeted $300,000 per year to pay for certain ce- ramic parts over the next 5 years. If the company expects the cost of the parts to increase uniformly according to an arith- metic gradient of $1 0,000 per year, what is it expecting the cost to be in year...
May 26, 2013 by Aly

Math
Can u pls pls pls solve this algebraic expression?? I cant solve it although I tried many possible ways and solutions :/ 10+1/3[4k-(18+7k)]
July 31, 2011 by Sally

chemistry
in the isolation of eugenol, why is it necessary to extract the organic layer with enough base? I am not an organic chemist so check me on this. Isn't eugenol a phenol? Won't that make it somewhat acid? Won't the NaOH extraction make the phenol a sodium salt soluble in the ...
January 15, 2007 by madel

Organic Chemistry
To which class of compounds might the following molecule belong? C3H6O I am guessing, but is it ketone class? Can someone check for me.
August 5, 2009 by Soojung

Soxhlet extractor
Does anyone know what kindo of chemistry lab course(Organic, Physical, etc.) might use a soxhlet extractor in the experiments? Sheryl http://en.wikipedia.org/wiki/Soxhlet_extractor Certainly Organic It is used in organic chemistry. The URL provided by Lance will give the ...
October 9, 2006 by Sheryl

Organic Chemistry 1
Why does iodine absorb organic molecules? This question is referring to the effect of the iodine chamber used in TLC.
October 24, 2008 by Audrey

chemistry pls help
If 10.0 mL of 1.0M HCl is added to 90 mL water, what is he concentration of the new solution? What is the pH of this solution? If the solution is titrated by 0.500M Ca(OH)2, how much volume (ml) of NaOH necessary? Need help pls.
December 8, 2012 by Emmy

Chemistry
To neutralize a 0.5192 g organic acid, 44.0 mL NaOH solution (1.00 ml ~ 1.12 mL HCl ~ 0.0100 g CaCO3) is required. What is the equivalent weight of the organic acid?
January 21, 2014 by Summer

chem
The molar concentrations for the reactants and products at equilibrium are found to be [HCl] = 0.80 M, [O2] = 0.20 M, [Cl2] = 3.0 M, and H2O = 3.0 M. What is the value of the equilibrium constant for this reaction? the complete reaction is 4HCl+O2=2Cl2+2H2O i got this answer ...
November 19, 2012 by tracy

Chemistry
1. If you became confused and did not know whether a flask contains an aqueous layer or an organic layer, how would you find out which it is? 2. Write a balanced reaction for the reaction of Aspirin is precipitated from the basic aqueous solution by the addition of HCl. 3. ...
September 17, 2012 by Cassie

organic chemistry
a careless organic chemistry student was performing "competing nucleophiles in nucleophilic substitution reactions" experiment , and left his container of tert-butyl chloride and tert-butyl bromide open to the air for several hours. what happened to the composition of the ...
October 22, 2012 by lyly

Math
Pls check (38+4^2)-9 24+16 40-9 31 6(10+6)-6^2 616 96-6^2 96-36 60
September 24, 2013 by Gio

Organic Chemistry/Biology
My text has a review of some chemistry before getting into the biology bit. I have come to a question "what are 3 characteristics/features of an organic compound." My book seems to only have the general they all have carbon. The rest goes into depth about the different classes...
September 20, 2007 by Lena

chemistry
How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles
August 26, 2012 by jake

math --- pls check my work!
help pls asap!!! Check my work! 1. Find the area for the following figure. (trapazoid: bottom base 16.3, top base 5.9, height 4.6) 51.06 m^2*** 74.98 m^2 27.14 m^2 102.12 m^2 2. Find the area for the following figure. (1 point) (triangle: base 20.3, height 6.2) 125.86 cm^2 62....
February 3, 2014 by TTR+S<3

Chemistry
Hey; I am doing a lab write up that has to do with NMR spectroscopy. Part of it asks to determine how many nonequivalent protons are in the compound 2-chloro-6-methylaniline, among other things. My problem is this is for kinetics class but this part of it has to do with ...
February 26, 2008 by Tracy

chemistry
In the extraction of an organic compound from a dilute aqueous solution, will the organic solvent form the uppoer or lower layer when each of the following solvent is used? a. chloroform b. cyclohexane c. heptane d. dichloromethane
September 23, 2008 by Poole

organic chemistry
gas chromatographic analysis of a mixture of organic compounds gave the following peak areas: 2-hexene= 2.5 2-bromogexane=4.0 2-henanol=1.8, calculate the mole percent compostion of the mixture
March 14, 2012 by jessica

Physics
A child pulls a wagon along level ground. The handle with which she pulls the wagon makes an angle of 20.0 degrees with the ground as the child pulls with a force of 78.0 Newton. What are the components of the force. Pls pls pls pls help me answer this and may God bless u!
October 16, 2013 by Stephanie

Math
Pls check - Solve 9^2-7 (162^3) 9^2-7 (168) 81-7 (2) 81-14 67
October 20, 2013 by Gio

Math
Pls check - Solve 9^2-7 (162^3) 9^2-7 (168) 81-7 (2) 81-14 67
October 20, 2013 by Gio

chemistry
Which solvent would dissolve each of the following compounds?(water, a polar organic solvent, or a nonpolar organic solvent) a) NaI b) H3CCH2CH2OH C)H3CCH2CH2CH2CH2CH2CH2CH3
September 11, 2011 by lon

chemistry
A student tipped the watch glass and spilled the solution containing organic component X. Use the data given below to estimate the percent of organic solid X in the sample. Mass of sample 0.6084g Mass of water soluble component, Y 0.1565g Mass of insoluble component, Z 0.2293g...
April 9, 2012 by Vanilla

Chemistry
In an organic chemistry lab, why is the organic layer usually the upper layer in the separatory funnel while the aqueous layer is usually the bottom layer?
November 16, 2011 by Rachel

organic chemistry
Show the reaction of 1-naphthylamine hydrochloride with sodium hydroxide using structural formulas. Indicate which layer (aqueous or organic) each component in the reaction will mainly reside in (for both products and reactants). How is this done?
February 5, 2009 by sarah

Algebra pls check
Is this right ? -2(w-30) =-6w -2w -60 = -6 w +2w =+2w -60 = -4w _____________ -4 = -4 15 = w
October 14, 2012 by Marco

Organic Chemistry
The separation of a mixture of benzoic acid and benzoin in dichloromethane into its pure compounds by a combination of solvent extraction , distillation and recrystallization. Why is carbon dioxide evolved when the organic solution is shaken with sodium bicarbonate? what is ...
November 17, 2010 by Davia

chemistry
1)when benzoic acid and quinine is dissolved in CH2Cl2 and added 2M NaOH, what is the organic layer and what is the aqueous layer? a)and by adding another 2M NaoH to the organic layer, what is the new aqueous layer and organic layer? b)from (1), if we add CH2Cl2 to the aqueous...
March 31, 2009 by Nancy

math---help! connections academy! check my answers
pls help asap! check my answers: In the diagram, lines m and n are parallel. If m2 = 150, find the measure of the following angles. 1. 4 = ? (1 point) 120 50 30 150 2. 6 = (1 point) 150 130 15 30 3. 8 = (1 point) 30 132 20 150 4. 7 = (1 ...
January 28, 2014 by TTR+S<3

organic chemistry
Why does the alkyl halide layer switch from the top layer to the bottom layer at the point where water is used to extract the organic layer?
October 24, 2011 by Ivy

chemistry
pls help i need the answer not jus part of it, pls im really stuck out here. A buffer was prepared by dissolving 0.100 mol of the weak acid HA (Ka = 1.00 10−5) plus 0.050 mol of its conjugate base Na+A− in 1.00 L. Find the pH.
December 1, 2012 by canas

Organic Chemistry
I just want to check if I am correct on this Q: What is the major product formed when 1-butene reacts with water in the presence of dilute sulphuric acid? a) 1-butanol b) 2-butanol c) butane d) 1-methylpropanol I "think" that it "should" be "B" (2-butanol)???
February 24, 2008 by K

chemistry (Pls Bob check for me)
what mass of 25% ba(n03)2 solution contain 40 grams of ba(n03)2 ? Answer 160g My calculation 40g/261.37g/mol = 0.15305/0.25g = 0.612 This answer is not right Who helps
April 28, 2013 by Fai

Physics - Assist pls!
Dear All please do help me out - thanks. How much heat and light energy is produced by a 100W electric lamp in 5 minutes? Solutn = I tried this using Energy = power x time 100 x 5min = 100 x 300 sec = 30,000J - Pls do I got the answer? You will see it easier if you include ...
April 18, 2007 by Sola

chemistry
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 ...
March 31, 2010 by T

Chemistry
A .288 g sample of an unknown monoprotic organic acid is dissolved in water and titrated with a .115 M sodium hydroxide solution. After the addition of 17.54 mL of base, a pH of 4.92 is recorded. The equivalence point is reached when a total of 33.83 mL of NaOH is added. What ...
June 8, 2008 by johnny

college
Organic chemistry question. I need help with a couple of questions on organic groups. What are some products that contain: Alkynes, Aromatic (benzene), Ethers, Aldehydes, Ketones, and Acids. I also need to know some of the harmfull effects that each one of them can cause.
October 24, 2010 by Tom

Chemistry-pls help
I refer to the following question. Is my explanation correct, that step two C6H14(g)--> 6CO2(g) + 7H2O(g) can be considered combustion reaction? Thank you! Posted by jan on Tuesday, March 31, 2009 at 10:28pm. C6H14(l)->C6H14(g) ->6CO2(g) + 7H2O(g) ->6CO2(g) + 7H2O(...
April 1, 2009 by jan

SCIENCE --- CHECK MY WORK PLS
help pls, check my work asap!?? 1) Which of the following is a chemical change? (1 point) Boiling of water*** Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen 2) What is the mass of water that results from combining 2.0g of ...
February 3, 2014 by TTR+S<3

Chemistry
Hi, Why are ionic compounds generally insoluble in organic solvents while covalent compounds are generally soluble in organic solvents? Can you please explain in more detail? Thank you.
March 4, 2009 by Aline

MANIPULATION OF DNA
can anyone describe to me what this is pls? also can anyone pls explain how dna manipulation works and what it does pls?
April 1, 2009 by GLORIA

physics.pls help
How do you know what element is chemically active on the periodic table? PLS HELP
October 5, 2011 by ted

math help
1/4 divided by 3/8 pls help me im confuss i forgot the ste pls explain
October 27, 2012 by Anonymous

food science
pls give me an idea on the formulation of bavarian cream filling. pls. thank you
January 4, 2008 by vcq

Science(Help NOW, Pls)
wat elements make up water? pls help! i will be very happy if you do! :S
December 15, 2010 by GirlSense

physics.pls help
Why is it important to asaume that a rope under tension is taut and does not stretch. pls help
November 14, 2011 by ted

Chemistry-pls help urgent
Posted by candy on Tuesday, October 12, 2010 at 5:04pm. 1) How do I prepare 2M nitric acid from 65% concentrated nitric acid? 2) How do I prepare 17% ammonia from 25% concentrated ammonia? Please show calculation steps. Thanks. Chemistry -pls help urgent - DrBob222, Tuesday, ...
October 12, 2010 by candy

Science(Help NOW, Pls)
organisms in which domain live in every environment? pls help, im stuck on this one. :S
December 15, 2010 by GirlSense

physics.pls help
A 100g bird sits in its nest. what is the Fnet(net force) in this case? pls help
November 10, 2011 by ted

physics.pls help
can you help me to isolate the ''t'' in this formula. d=V1t+1/2at^2 pls help
November 5, 2011 by ted

(pls help) algebra
4x+y-32=1, 6x-y-4z=7, 10x+2y-6z=5 pls show me how to solve for x,y,z. Ans:xx=1.5,y=-2,z=1
July 8, 2013 by david

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 ...
September 2, 2007 by ~christina~

e commerce or marketing, help pls
hi,good evening everyone can you help me on finding a clothing manufacturer resource system??? pls thank you
December 6, 2011 by need ASAP

oops, more LA than i thought..pls check my answers
oops, more questions... pls check them for me!??: 1. If you were writing a persuasive essay about the need to install solar panels on top of big apartment buildings, what counterargument should you address? (1 point) homeowners can get tax breaks for installing solar panels on...
January 7, 2014 by TTR+S<3

chemistry
At ph of 12 what charged groups would be present on glycine I said a NH2+ and coo- because a base accepts protons. Thank you I am not an organic chemist; however, I wonder, at a pH of 12, how there would be sufficient H^+ to form the NH2^+ ion? I can see the H^+ from the COOH ...
March 17, 2007 by alexandra (please help)

chemistry (Pls Bob check for me)
A 150 mg/dl glucose solution was diluted 1:2. Then 0.5ml of it was added to 4.5ml saline 2 ml of this solution was diluted to 10ml. What is the final concentration of glucose? 1L= 10dl 1dl =100mL Answer 0.015mg/dl
March 16, 2013 by Fai

Trig
Need answer check pls. Find the rectAngular equation for the plane curve by parametric equAtions. X=t +4 , y= t^2
April 25, 2010 by Stacey grahaM

organic chemistry
What will be the effect of adding solid NaHCO3 to hot concentrated H2SO4? Why should the reaction vessel containing a synthesized ester be cooled first before neutralization? My Guess #1: Since neutralization is an exothermic process and the ester is in equilibrium with its ...
March 1, 2008 by PIN

PLS HELP ME WITH ONE MATH QUESTION!!???
pllllsssss help me!!!!!!! 5. How many lateral edges are there in a triangular prism? (1 point) 6 3 9 12 I dont know if its 6 or 9 or even 12!!??? pls help asap!!!!!
February 19, 2014 by TTR+S<3

Chemistry
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 124 kJ is given off per mole of C2H4 reacting, how much heat is ...
October 19, 2010 by Jo

Chemistry
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 124 kJ is given off per mole of C2H4 reacting, how much heat is ...
October 22, 2010 by HELP !

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 ...
February 26, 2010 by 6739

Chemistry
For each definition, find a corresponding term from the following list: alkane,alkene, alkyne, alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine, fuctional group, isomers. a. Organic compounds with identical molecular formulas that differ in the order the atoms ...
July 20, 2010 by Elisabeth

Chemistry
For each definition, find a corresponding term from the following list: alkane,alkene, alkyne, alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine, fuctional group, isomers. a. Organic compounds with identical molecular formulas that differ in the order the atoms ...
July 20, 2010 by Elisabeth

Help pls.
Compute the acceleration of the block sliding down a 30 deg inclined plane if the coefficient of kinetic friction is 0.20. Show solution pls.
August 23, 2014 by Yan-yan

LA --- 1 question pls help!!!
hi, one question based on the short story called, "Cyber Chitchat" this one confuses me, pls help if u know the book! 8. The tone of "Cyber Chitchat" is (1 point) serious. humorous. depressing. angry. i think its humorous but im not so sure..... pls help asap!!!!! thanx in ...
March 2, 2014 by TTR+S<3

chemistry
A puncture in the tubing of a refrigerator can cause severe frosbite as chloroethane C2H5Cl, vaporizes. Use this thermochemical equation to calculate the heat absprbed when 23.6g of chloroethane vaporizes at its boiling point (9.66kj) C2H5Cl + 26.4kj arrow C2H5Cl. pls i need ...
November 19, 2012 by Ted

extraction
How to distingush organic layer and aqueous layer? The organic layer is the one on top. Most organic solvents are less dense than water. (NOte: Non-hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride etc are more dense than water.)
August 21, 2007 by bb

chem
Write the complete ionic equation for Cu(NO3(aq)+K2S(aq)and namd write the formula for the spectator ions in this reaction? This is what I got pls. check it: complete ionic equation: Cu^19aq)+K^1(aq)+S^-2(aq)=K^1(aq)+NO3^-1(aq)+Cu2S(s) net ionic equation: Cu(aq)+s^-2(aq)=Cu2S(...
October 5, 2012 by Amanda

organic chemistry
Write a complete mechanism. Explain each step. Explain the stereo chemical changes. Compare the HNMR peaks of the substrate and the organic product Indicate missing peaks and newly formed peaks in the product. CH3CH2CH2CH3 + Cl2/light--- CH3CHCLCH2CH3 =HCL
November 30, 2008 by Anonymous

chemistry (Pls Bob check for me)
A 0.5g of fuming h2so4 oleum is diluted with water. This solution is completedly neutralized by 26.7ml of 0.4N naoh. Find the percentage of free so3 in the sample The asnwer 20.6% My calculation h2so4= 98/2 = 49 so3= 80/2 = 40 26.7ml x 0.4N = 10.68ml - 0.01068L x/49 + x/40 (0....
March 24, 2013 by Fai

college chemistry
a 20.3 sample of an organic compound was ground with 442 mg of camphor to form an intimate mixture melting at 170.3 degree C. What is the apparent formula weight of the organic compound ? (Kf of camphor=37.7 degree C/m M.P. of camphor= 178.4 degree C)
December 6, 2010 by Cami

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members