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thời gian kiếm là 0.00 giây. Tìm Kiếm: Posts Made By: Diels-Alder
Chuyên mục: KIẾN THỨC HOÁ VÔ CƠ - INORGANIC CHEMISTRY FORUM 05-29-2008
Trả lời: 19
Lần đọc: 3,601
Người gởi Diels-Alder
I remember that at B building of HCMUNS has AAS...

I remember that at B building of HCMUNS has AAS machine. Try to reach here !
Goodluck.
Chuyên mục: NỀN TẢNG HỮU CƠ - FUNDAMENTAL ORGANIC CHEMISTRY 05-29-2008
Trả lời: 17
Lần đọc: 2,987
Người gởi Diels-Alder
Ac, :ngu ( Why do you lose face ??? I think your...

Ac, :ngu ( Why do you lose face ??? I think your knowledge is too little, so you should learn more than, don't afraid to lose face :chui (:ngu ( ;))

In this reaction, sulfuric acid is both...
Chuyên mục: ĐẠI CƯƠNG - VÔ CƠ 05-29-2008
Trả lời: 276
Lần đọc: 55,119
Người gởi Diels-Alder
I don't know your mention is which aspect of...

I don't know your mention is which aspect of stability ??? M-O bond, O-O bond, or both O-H and M-O bonds ...
Please tell me more details as you possible.
Chuyên mục: NỀN TẢNG HỮU CƠ - FUNDAMENTAL ORGANIC CHEMISTRY 05-29-2008
Trả lời: 17
Lần đọc: 2,987
Người gởi Diels-Alder
Oh my god, If you say that sulfuric acid solution...

Oh my god, If you say that sulfuric acid solution 98% is not concentrated solution, I really don't know what is solution considered as concentrated solution ??? :xuong (:ngu ( At this concentration,...
Chuyên mục: KIẾN THỨC HOÁ LÝ - PHYSICAL CHEMISTRY FORUM 05-29-2008
Trả lời: 33
Lần đọc: 12,485
Người gởi Diels-Alder
Cation Na+ will combine with surfactant to make...

Cation Na+ will combine with surfactant to make the ion pairs. Other way, Na+ will be solvated by aqueous, so it does not cause anything to this system. Don't worry about it !
Regard.
Chuyên mục: MATERIALS SCIENCE & MICRO-NANOTECHNOLOGY 05-28-2008
Trả lời: 15
Lần đọc: 6,812
Người gởi Diels-Alder
Hi nbaotoan. I have read slightly about quantum...

Hi nbaotoan.
I have read slightly about quantum dots from Bluemonster's posts and other references, but I still don't understand completely about Quantum confinement effect.

Topic Quantum dots +...
Chuyên mục: KIẾN THỨC HOÁ VÔ CƠ - INORGANIC CHEMISTRY FORUM 05-27-2008
Trả lời: 14
Lần đọc: 3,688
Người gởi Diels-Alder
Hi all ! If u are studying at HCMUNS, u can go...

Hi all !
If u are studying at HCMUNS, u can go to "B building", I don't remember exactly which is the room (seem that B26). U can ask or discuss with any-researcher who work on Raman Spectroscope at...
Chuyên mục: MATERIALS SCIENCE & MICRO-NANOTECHNOLOGY 05-27-2008
Trả lời: 15
Lần đọc: 6,812
Người gởi Diels-Alder
Hi nbaotoan ! Can u tell me more about Quantum...

Hi nbaotoan !
Can u tell me more about Quantum Confinement effect ? What the problems are caused by this effect ? And how does it influence to the determination particle size of UV-VIS ?
I am...
Chuyên mục: KIẾN THỨC HOÁ LÝ - PHYSICAL CHEMISTRY FORUM 05-23-2008
Trả lời: 33
Lần đọc: 12,485
Người gởi Diels-Alder
In this case, I think the sodium salt is better...

In this case, I think the sodium salt is better choice. Because the solvent is water, and surfactants have the ionic terminating, so it can dissolve in water by this one.

Goodluck.
Chuyên mục: PHƯƠNG PHÁP PHÂN TÍCH SẮC KÍ - CHROMATOGRAPHY ANALYSIS 02-16-2008
Trả lời: 14
Lần đọc: 3,021
Người gởi Diels-Alder
Oh, shock question, it really make me shock ! ...

Oh, shock question, it really make me shock ! :sacsua (
Are u investigator ? And why were u very interested in how many subtances that be analysed :hung ( :bole (

Sorry manager group if my...
Chuyên mục: ĐẠI CƯƠNG - VÔ CƠ 02-14-2008
Trả lời: 5,023
Lần đọc: 514,090
Người gởi Diels-Alder
please ref here: ...

please ref here:
http://chemvn.net/chemvn/showthread.php?t=604&highlight=tr%E1%BB%9Di+xanh

Enjoy.
Chuyên mục: PHẦN MỀM ỨNG DỤNG - APPLIED SOFTWARES 02-12-2008
Trả lời: 1
Lần đọc: 1,153
Người gởi Diels-Alder
Spartan - Manual (Powerful chemistry program)

Hi everybody.

I am a new member, and I feel "World of Chemistry" forum is a academic forum, it seems to focus on study and research. I believe have many good researcher at here.

I am finding...
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