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Jan16-12 Greg Bernhardt
chemistry, websites Sticky Thread Pinned: Good chemistry websites ( 1 2 3 ... Last)
I think that these links can be interesting: PeriodicTable: http://www.webelements.com/...
May7-14 10:06 PM
Awheezi
115 145,722
chemical, latex, typeset Sticky Thread Pinned: Chemical LaTeX typeset ( 1 2 3 ... Last)
Physicsforums now has a very cool feature, which enables complex typesetting for formulas or equations! A tutorial...
Jul7-13 04:53 PM
jackmell
64 153,755
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 40,758
The refractive index of H2 = 1.0001594 under the following conditions : P = 101325 Pa T = 273.15 K I...
T 06:23 AM
kinogram
12 552
I was reading this website (http://www.chembuddy.com/?left=pH-calculation&right=pH-amphiprotic-salt) on calculating pH...
T 04:52 AM
Borek
1 151
I am currently in Year 12 (high school) and have been doing a wine-making experiment for chemistry. This has involved...
T 04:43 AM
Borek
28 5,337
Why is Ksp not defined for soluble salts? Also, when an equilibrium is established between the solid, undissolved salt...
T 04:28 AM
Borek
2 1,027
I looked up the word oxidize and one of the definitions is to make it an oxide which is what happens when iron gets...
T 04:22 AM
Borek
3 574
This is a question in "Chemical Principles, 6th Edition, Steven Zumdahl": Bond energy has been defined in the text as...
T 04:15 AM
Borek
2 840
Hi! I was about lubricating my computer fan. The WD40/sewing/machine oil dries up quickly so I was wondering about...
Y 07:11 AM
256bits
1 212
Hello Forum, I have two polymers (both in pellet form). Their spec sheet shows that the two polymers have different...
Jul26-14 08:56 AM
fog37
2 403
What does the term magnetic moment mean and how to look at it intellectually .what are its effects,what are its type
Jul25-14 12:59 AM
MisterX
1 241
My A level Chemistry textbook defines Lattice Energy as "the enthalpy change when 1 mole of an ionic compound is...
Jul24-14 11:16 PM
MohammedRady97
7 1,974
Does it have to do with sucrose decompose into glucose and fructose or surface area? Caramelization occurs when sugar...
Jul24-14 10:29 AM
kevin_tee
8 707
If the equation below is correct n = PV / (R/T) where : n = gas density in mole / m P = pressure in Pascal...
Jul23-14 05:37 PM
kinogram
2 309
What are biocompliant solids and what are its use?
Jul23-14 03:29 AM
kartikwat
2 841
Dear All, I would like to know about (question related to computational chemistry): what is valence molecular...
Jul23-14 02:52 AM
Rajini
2 683
So I'm pretty sure this falls into both the realms of physics and electrochemistry. How would I calculate the rate of...
Jul23-14 12:39 AM
Warpspeed13
2 765
Hello! For those who took (or have been taking) the organic chemistry, which methodology do you prefer to tackle...
Jul22-14 12:41 AM
PWR plants
1 1,230
I think the title says it all. Lemme know if it is unclear.
Jul21-14 02:21 AM
DrDu
2 669
I understand the concept of a reactive species on a sort of vague and intuitive level: a reactive species is one that...
Jul21-14 02:17 AM
DrDu
2 521
Transition elements can form ions with different charges. Why can't elements other than transition elements form ions...
Jul21-14 01:29 AM
DrDu
1 484
According to my chemistry textbook, the I- ion is discharged at the anode. Yet, according to standard electrode...
Jul20-14 02:13 PM
ndawanamazvita
1 1,246
Note: My english isnt well. Everyone knows toothpaste's has chemicals in variety. Floride is the main chemical. But...
Jul20-14 07:54 AM
Simon Bridge
1 598
I notice when I put my wagon out and expose it to rainwater that because it is not made of stainless steel, after a...
Jul20-14 02:36 AM
caters
2 2,118
Why when phosphorus is added to silicon, phosphorus bind with only four silicon atoms and contributes with its extra...
Jul18-14 01:45 PM
mfb
4 766
Suppose we have a cube, of length 1 metre. It is cut in all the three directions so that 8 cubes, each having 0.5 m as...
Jul18-14 08:11 AM
Prashasti
4 1,030
Why there no change in volume and enthalpy of solution when two components are mixed
Jul16-14 10:47 AM
Chestermiller
6 1,426
There is a device called a Fizz Keeper that attaches to carbonated beverage bottles and is supposed to keep them from...
Jul16-14 09:10 AM
Chestermiller
4 1,464
Hi, I red in reaction kinetics that if you plot the concentration of A againts "some constant times the...
Jul14-14 07:49 PM
epenguin
2 1,418
In the chemical engineering curriculum I saw "general chemistry for engineers." How different is it from regular...
Jul14-14 12:01 PM
bacte2013
7 2,724
Dear all, I am preparing nano Cu particle by reaction of CuCl2 with NaBH4 in PVP solution. CuCl2 and PVP were mixed...
Jul13-14 10:44 AM
The_architect
2 2,285
I am struggling to understand how to determine splitting patterns for molecules. For example, (see attached) I was...
Jul12-14 02:59 AM
sjb-2812
5 2,448
What are the facts about water, if I drink water that has mercury in it or led, can it mess up your brain and/or body?...
Jul11-14 10:42 AM
Borek
9 1,963
Hi I need some help understanding reaction kinetics, and I’m trying to get an overview, so I’d really appreciate some...
Jul10-14 11:50 AM
christian0710
5 1,674
I recently became interested in the chlor-alkali process, specifically the one using a salt bridge, and wondered if I...
Jul9-14 11:29 AM
The_architect
7 2,431
How to determine the bond angle based on the formula of molecules?
Jul9-14 05:22 AM
Borek
3 2,325
Hello! I am researching on bio-plastics and have created bio-plastics out of two waste products. In order...
Jul8-14 11:43 PM
mohnish
6 2,267
I am interested in knowing whether what changes would happen at the molecular and atomic level, to a material...
Jul5-14 11:16 AM
Ygggdrasil
1 2,042
Hi everyone, I am doing MD simulation for zirconium (hcp). I have to input some orientation for crystal in...
Jul4-14 04:35 AM
anurag
4 2,527
Hi I have a simple question about HPLC regarding the pore size vs the molecule size of the analyte. Are there...
Jul3-14 02:29 PM
Greg Bernhardt
1 2,389
Dear community fellows Can somebody help me in identifying the name of SnMg2O4 ? Other examples are ZnAl2O4 (Zinc...
Jul1-14 11:38 PM
masyousaf1
7 3,347
Hi all, One of the orbitals of the d subshell is called d (x^2-y^2). What is the reason behind that? It would be...
Jun30-14 02:35 PM
Mike H
2 2,298

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