| Thread | Last Post | Replies |
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| soap smell | 29 Sep 2007 05:07 GMT | 5 |
Why does soap and detergent smell the way they do. None of their ingredients even come close to the finished product. Can anyone tell me? Thanks.
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| purifying bismuth | 27 Sep 2007 20:40 GMT | 5 |
Hi everyone, I'm interested in ways to purify bismuth preferably at home (I'm a hobbyist). I'm interested in making bismuth crystals but require very pure bismuth to get nice looking crystals. I'd like to keep from specialty ordering material and purify my own bismuth out of
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| difference between mass | 27 Sep 2007 18:33 GMT | 16 |
In my book I see that various samples of elements with different amounts of mass have the same amount of particles, for example a mass of 26.98 g of Al has 6.022 * 10^23 amount of atoms in it (1 mol) and a mass of 63.55 g of Cu also has 1 mol of atoms inside, etc. etc
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| Swimming pool water : Carbonate sodium and Sodium bisulfate | 27 Sep 2007 05:09 GMT | 1 |
I use severals products in swimming pool water: - Carbonate sodium Na2CO3 as pH balancers <50g, - Sodium bisulfate HNaO4S as pH balancers <100g, - sodium dichloroisocyanurate dihydrate as disinfectant water treatment
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| thinking about solutions | 26 Sep 2007 17:33 GMT | 3 |
I'm slightly used to thinking about polar solutions in polar solvents. I have no mental pictures at all about solutions in non-polar solvents. I have Atkins' Physical Chemistry (1979) which helps a little, but not much. What should I read to get a thorough treatment of the subject
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| Bullshit on website | 25 Sep 2007 21:29 GMT | 3 |
I thought this was a group for chemistry and not aholes posting this nonsense. shouldnt the moderator be taking care of this.
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| sporge | 24 Sep 2007 03:31 GMT | 1 |
There has been talk that rec.pyro is dead. Why, because of this delinquent that has inundated this group with sporge. It is not only this Google group that has been attacked though, others have seen the same thing, yet nobody seems to be able to do anything
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| #12 Great Attractor is Nucleus of Atom Totality and Great Wall & Sloan Great Wall Re: ATOM TOTALITY (Atom Universe) THEORY REPLACES BIG BANG THEORY IN PHYSICS | 24 Sep 2007 01:19 GMT | 160 |
a_plutonium wrote:
> a_plutonium wrote: > > Referring to this mapp of the cosmos of galaxies and especially the > > Sloan Great Wall and the other Great Wall |
| Ti coating on copper? | 24 Sep 2007 00:06 GMT | 2 |
Coating Ti onto other metals is a challenge for sure. There are many unsuccessful attempts to plate them. In our manufacturing process, we used a lot Ti sheet metal to manufacture anodizing racks (www.anodizingracksonline.com). The big
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| Does salt help or hurt nonstick cooking? | 22 Sep 2007 22:51 GMT | 5 |
When frying/braising meat I frequently have problems with sticking and burning because i try to use as little fat as possible. I know that salt can raise the boiling point of water reducing scorching but salt alo can denature some proteins. My experience seems to indicate that
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| material for roads | 22 Sep 2007 20:36 GMT | 1 |
I was just wondering why no one has developed a material for roads that doesn't get all messed up in cold weather.
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| model of a phosphate group | 22 Sep 2007 16:52 GMT | 2 |
Does anyone have a link to a VSEPR model of a phosphate functional group? Thanks.
 Signature "hichkas Alem be donyA nemi'Ayad. hameye mardom
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| partial charge | 22 Sep 2007 12:39 GMT | 20 |
I simply don't know if partial charge even in simple molecules as (for example) H-F (hydrofluoric acid) is an 'observable' in the corresponding Schroedinger wavefuntcion (my expectation is not). Nevertheless,
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| CO2 capturing--- | 21 Sep 2007 18:10 GMT | 5 |
On the contrary of the rest of the world, I need a lot of C02 (Carbon dioxide)... something like 30,000 kg daily... Now there are recuperators that are very complex and expensive, that you can attach to chimneys... you can also capture CO2 from manure fermenting... does
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| Silver/silver bromide | 21 Sep 2007 07:21 GMT | 2 |
I have an expensive silver bromide-covered silver anode I would like to salvage to replate w/silver chloride. What's the best
>common< chemical to strip the bromide off (no, sandpaper is not allowed).
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