Chemistry - November 2007

I'm in IPC and I'm not that smart, i need to know all this to be as good as other nerd(I'm not a nerd)

2007-11-03 14:30:39 · 3 answers · asked by Black Ninja12 3

I've figured about half of it out, but I need help with the remainder of it.

I have to apply the following properties to seven different molecules. The properties can/will be repeated and more than one can apply to the same molecule.

Properties:
Non-polar bonding
polar bonding
insoluble in water
soluble in water

Molecules:
Fructose
Glucose
Triglyceride
Cholesterol
Leucine
Serine
Cysteine

I really appreciate it. Thanks so much.
First to answer all with sources will get best answer :)

2007-11-03 14:21:28 · 2 answers · asked by belizeable 4

how do glasses differ from each other

2007-11-03 14:19:09 · 4 answers · asked by shooting doctor 4

ok, how do you name ionic compunds using the stock systemm, i know how to name simple ones but not with the stock system can you please use steps on how do it thanks so much ! :)

2007-11-03 14:08:05 · 1 answers · asked by Anonymous

For metal/nonmetal combination, tell the charge on each atom in nature and determine the chemical formula of the ionic compund formed.
1.) Sr and N
2.) Ga and F
3.) Cs and O
4.) Rb and P
5.) Ca and Br
6.) Ra and I
7.) B and P
8.) Be and N
9.) Al and S
10.) B and F

2007-11-03 14:02:25 · 1 answers · asked by blessed 1

2007-11-03 14:00:17 · 3 answers · asked by Mitch M 1

2007-11-03 13:57:22 · 3 answers · asked by Patrick B 1

Thnx for the help!!

2007-11-03 13:54:25 · 2 answers · asked by bgcheerforce 1

N2O gas was generated from the thermal decomposition of ammonium nitrate and collected over water. The wet gas occupied 126mL at 21C when the atmospheric pressure was 758 torr. What volume would the same amount of dry N2O have occupied if collected at 758 torr and 21C? the vapor pressure of water is 18.65 torr and 21C.

this is what i setted up so far
P1= .99atm P2= .025 atm
T1= 294 K T2=294K
V1= .126 L V2=?

I know we have to set this up in this eqn
P1V1 / P2V2 = N1R1T1 / N2R2T2
since R is constant that is cancelled...but what about N?

2007-11-03 13:27:12 · 2 answers · asked by pnetecos 1

I requesting some help to help me *understand* how to do this. Thanks.

2007-11-03 13:03:04 · 3 answers · asked by RogerDodger 1

Sooo just a question that i've often wondered the answer to.

Say someone is having a bath (just pure water though) and they decide to mess about underwater. And they exhale whilst underwater.

Now when we exhale, we produce carbon dioxide gas. And carbon dioxide gas makes a solution acidic. So, if said person exhales underwater enough, is it possible that they are now bathing in an acidic solution. And is this detrimental to their health?

Very strange question, i know. But im curious. Anyway, thanks. xxx

2007-11-03 10:38:48 · 3 answers · asked by darkenedenvy 2

Hey guys. I am having trouble with number one. I am lost on it. On number 2, I said No and 2L that right? Thanks

1) A gas of unknown molecular mass was allowed to effuse through a small opening under constant pressure conditions. It required 113 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 31 s for 1.0 L of O2 gas to effuse. Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.)

2)Suppose you are given two flasks at the same temperature, one of volume 2 L and the other of volume 3 L. In the 2-L flask the gas pressure is X atm, and the mass of gas in the flask is 4.8 g. In the 3-L flask the gas pressure is 0.1X, and the mass of gas is 0.36 g.
(a) Do the two gases have the same molar mass?
Yes
No
(b) If not, which contains the gas of higher molar mass?
Gas in 2-L
Gas in 3-L

2007-11-03 10:21:44 · 1 answers · asked by Reviction 1

I know organic compounds contain carbon, so in other words name some compounds that contain carbon.

2007-11-03 10:03:23 · 4 answers · asked by ajdrausal 2

1. C6H12O6
2. KOH
3. C4H9OH
4. C6H14
5. HNO3
6. CH3OH

2007-11-03 10:01:14 · 4 answers · asked by Anonymous

2007-11-03 09:51:08 · 1 answers · asked by D J 1

can anything bad happen you spray hairspare on a liter flame. i did it and it made a big flame it was awsome.

2007-11-03 09:50:33 · 2 answers · asked by sbfsn 1

how would the observation for rutherfords experiment be expected to change if thicker metal foil were used?

2007-11-03 07:56:30 · 1 answers · asked by Anonymous

100cm^3 of vinegar at 15 degrees centigrade was made upto 250cm^3 of solution with distilled water. 25.0cm^3 of this solution required 16.9cm^3 of 0.5M NaOH for neutralisation. Assuming that all the acidity of vinegar is caused by ethanoic acid, CH3COOH, calculate the percentage by mass of the acid in the original vinegar. The density of vinegar at 15 degree centigrade is 1.02g cm^-3.

2007-11-03 04:57:05 · 1 answers · asked by ur having a right laugh innit 2

2007-11-03 04:36:44 · 6 answers · asked by Macbeth 1

The crystal structure of an ionic compound consists of alternating cations and anions lying next to each other in three dimensions. If the cation radius is 55.9% of the anion radius and the distance between the cation nuclei is 580. pm, what are the radii of the two ions? (Note: This ionic compound is a three dimensional array. The cation to cation, center-to-center distance specified is through the center of the anion.)
anion
pm

cation
pm

Will give 10 points to right answer

2007-11-03 03:16:53 · 1 answers · asked by jnester0289 1

1. Pt-175 decays by alpha emission
2. Al-28 decays by beta emission
3. Co-55 decays by positron emission
4. W-160 decays by alpha emission
5. D-15 decays by positron emission

2007-11-03 01:34:06 · 3 answers · asked by jayveelim1323 2

can anyone tell me what this is:

hydrogentetraoxosulphatesixacid ???

is it an iupac name?? or what?

2007-11-02 23:06:37 · 7 answers · asked by ★Star Girl★™ 6

2)What is the wavelength of radiation that has a frequency of 5.4 1012 s-1?

3) Would the radiations in part (a) or part (b) be detected by an X-ray detector?

4) What distance does electromagnetic radiation travel in 21 fs?


if someone could jus lead me in the right direction to solving these

2007-11-02 21:33:30 · 2 answers · asked by Circuiteer 1

chemical formula for urea

2007-11-02 20:02:22 · 10 answers · asked by Anonymous

what is this?
thanks

2007-11-02 18:54:22 · 0 answers · asked by Boo Radley 4

cacl2--> MY ANSWER(CA+2CL)
alcl3---> MY ANSWER(al+3cl)
how do I write balanced EQ for dissociation are they different than normal blaancing?

2007-11-02 18:50:46 · 1 answers · asked by frenchies 2

2007-11-02 18:25:15 · 2 answers · asked by janice r 1

I am currently extracting potassium chlorate from paper strike on box white match heads. I soaked 7225 match heads in some water overnight to remove all the white stuff off the paper and then put the white watery mixture on a plastic pan to evaporate the water, after all the water is evaporated there should be some crystal on top of the pan, after these crystals are scraped off it should be somewhat pure potassium chlorate. My question is: Can potassium chlorate ignite by a small amount of friction(such as when I scrape it off the pan), or by a small impact(such as if I were to put a gram of it in a container and then drop the container from a few feet above the ground?Are there any chemicals in white paper match heads that are strike on the box that would make it more sensitive? What are the precautions I should take when dealing with this stuff? I know not to mix with sulfurs or phophides because it'll make it even more sensitive.

2007-11-02 17:03:26 · 6 answers · asked by nick 1

2007-11-02 16:03:21 · 1 answers · asked by Anonymous

Give the ground state electron configuration for Br-

I got [Ar]4s23d104p5

Did I work it out right?

2007-11-02 14:17:34 · 3 answers · asked by Jay H 1