Chemistry - July 2006

I know it is the characteristics of what the perfect gas would be, and that no such gas exist. What is the function of this concept?

2006-07-18 04:30:08 · 7 answers · asked by #3 2

please explain..

2006-07-18 03:49:32 · 14 answers · asked by beibi anghell 1

and kindly please explain or give the formulation of how it came to be..tnx!

2006-07-18 03:46:53 · 7 answers · asked by beibi anghell 1

2006-07-18 03:32:20 · 9 answers · asked by luqmaniack 1

Are there any reagents to add to these solutions so it can absorb in uv-vis? I have a client which used refractometer to analyze their processed solutions (HF, IPA, KOH content). However, they need to have alternative instruement since their refractometer model has not been sold in the market anymore. They wanted to try uv-vis since it's the only instrument that they have. If it's not applicable, what other methods of analysis are applicable to analyze concentration of these solutions. Their concentration range is (40-47%). They wanted to know if their processed csolutions are within the range. I think titration of KOH (colorimetric), and HF (potentiometric) is applicable. While for IPA, we can use GC. However, my client wanted, if possible, to analyze the three processed solutions using the same intstruemnt but not at the same time. They just want to purchase one kind of instrumetn so that it would not be too costy in their part. Thank you

2006-07-18 03:24:29 · 3 answers · asked by chin 1

2006-07-18 03:16:15 · 12 answers · asked by luqmaniack 1

This is a basic organic chemistry question...Thanks!

2006-07-18 01:56:13 · 5 answers · asked by nicole s 1

what are differencies between silicone breast, silicone pads on optical frames, silicone toys?

2006-07-18 01:14:48 · 3 answers · asked by sid 1

please help me on this one.. give it to me in the most simple form u can do thanks!

2006-07-18 01:01:58 · 1 answers · asked by Anonymous

2006-07-18 00:48:20 · 7 answers · asked by Kenz 2

Can one freeze a flame without exploding.

2006-07-18 00:37:04 · 26 answers · asked by muffin 2

2006-07-17 23:51:18 · 1 answers · asked by Ragu 2

antibody dilutions of:

1:25
1:50
1:100
1:200
1:500

thanks!

2006-07-17 22:48:34 · 3 answers · asked by silverpearl 4

Isn't tha answer is Zinc carbonate + -----plus what?
and another is Lead + Nitric Acid = ...i dont know what's that...

2006-07-17 21:43:33 · 8 answers · asked by paparuscy_s 1

i`m in curious to know whether a man can find solution, that can he become invisible in this world. He should be a man and he can see the world and its living being. "But he wasn seen to others in this world". Is this possible".....

2006-07-17 21:30:10 · 10 answers · asked by Anonymous

Isn't the answer is Calcium sulfate + carbon dioxide + water ??

2006-07-17 21:29:20 · 11 answers · asked by paparuscy_s 1

Hello

If anyone can help me it would be much appreciated. I am a young highschool student who loves to experiment now I have taken high school chemistry and did get an A in it but I am not sure if either of these are entirely safe to do at home. I have tried to look up MSDS of these chemicals but have not been able to find an exact msds for these and as such am a little worried.

The following links are the two experiments Ive seen they differ slightly my questions are

A) which one of these methods is the safest?
B) how safe exactly is it? is it safe to do at home?
C) how hard is it to get the chemicals needed to do these?

Site A)
http://cas.bellarmine.edu/chem117a/lab/luminol.htm

Site B)
http://library.thinkquest.org/3310/nographics/experiments/lumine.html
I believe this is the same experiment
http://qsad.bu.edu/curriculum/labs/Luminol3_1.html

If anyone knows of a safer way to perform this experiment i would really appreciate any step by step instructions

Thank you very much.

2006-07-17 21:17:43 · 2 answers · asked by Anonymous

How we can explain for a child what is ion?
I would like to see a vedio explaining what is ion, and how the atom become an ion?

2006-07-17 21:11:27 · 6 answers · asked by Seema 1

2006-07-17 21:09:41 · 6 answers · asked by sianz 2

2006-07-17 20:30:57 · 4 answers · asked by Ashiq S 1

2006-07-17 19:45:52 · 2 answers · asked by zacharydai 3

I'm not totally sure. I need the answer for my mid-term tomorrow

2006-07-17 19:43:20 · 10 answers · asked by zacharydai 3

What is the pH of 0,10 M sodium acetate (NaAc) solution? The Ka of acetic acid (HAc) is 0,000018.

2006-07-17 19:34:07 · 1 answers · asked by yveswang1998 1

2006-07-17 18:55:14 · 2 answers · asked by Sharmin Sultana Dipti 1

2006-07-17 18:51:10 · 9 answers · asked by Anonymous

hexachloroethane has a vapor pressure of 780mmHg at its melting point of 186 degrees Celsius..

2006-07-17 18:19:55 · 1 answers · asked by chemji 1

don't answer if you don't know

2006-07-17 17:12:59 · 19 answers · asked by Anonymous

2006-07-17 16:40:39 · 7 answers · asked by zacharydai 3

I would like to know if there is any simple chemical test to detect whether cow milk is added with goat milk?

2006-07-17 13:44:48 · 5 answers · asked by dove 1

2006-07-17 13:35:48 · 4 answers · asked by Timmy 2