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Which formula do you use to correct boiling point depending on the atmospheric pressure
[rquote=667977&tid=158145&author=teodor]
Dt = 0.001 * (760 - p) (t + 273)
So the tempera ... |
3-12-2021 at 12:51
by: vmelkon |
Sn + HNO3 => Sn(NO3)2 - tin(II) nitrate
Actually, I am trying to separate some Sn-Cu-Ag alloy.
HCl dissolves the Sn. What is left is a red ... |
26-11-2021 at 16:58
by: vmelkon |
Sn + HNO3 => Sn(NO3)2 - tin(II) nitrate
Hello,
What happens when you put some tin in nitric acid?
Maybe with a conc of between 1 to 10 M.
... |
26-11-2021 at 11:21
by: vmelkon |
carbon dating
[rquote=598572&tid=18959&author=walruslover69]My highschool biology teacher believed the ear ... |
2-11-2021 at 14:20
by: vmelkon |
carbon dating
[rquote=598531&tid=18959&author=AJKOER]Ignoring possible sample selection and preparation is ... |
2-11-2021 at 13:49
by: vmelkon |
Cu(OH)2 what to do with it?
One interesting phenomenon that I have seen is from NurdRage
You can make some CuCl2.
Add it to ... |
30-10-2021 at 18:19
by: vmelkon |
magnesium from soda cans
[rquote=666607&tid=157921&author=Linus1208]At first, I'm not sure that all soda cans consist ... |
30-10-2021 at 13:31
by: vmelkon |
magnesium from soda cans
[rquote=666572&tid=157921&author=unionised][rquote=666562&tid=157921&author=macckone ... |
26-10-2021 at 06:26
by: vmelkon |
magnesium from soda cans
[rquote=665153&tid=157921&author=ATPfactory]I was googling for new projects and I somehow la ... |
24-10-2021 at 18:32
by: vmelkon |
Putting BaSO4 to use?
[rquote=666489&tid=157947&author=S.C. Wack]Dead car batteries have liitle sulfate in them, a ... |
24-10-2021 at 18:24
by: vmelkon |
Building a Spectrometer
[rquote=663221&tid=157745&author=zinc finger]A wide or full-spectrum light source really is ... |
23-7-2021 at 16:38
by: vmelkon |
Building a Spectrometer
[rquote=663210&tid=157745&author=JohnnyBuckminster]You can 3D print one, and use your phone ... |
23-7-2021 at 16:34
by: vmelkon |
Building a Spectrometer
Ahoy!
Has anyone built a spectrometer?
How do you make the spectrum as wide as possible? Is it p ... |
22-7-2021 at 19:02
by: vmelkon |
What is this yellow stuff?
My guess it is some copper compound. Perhaps you heated your liquid to drying and the edges overheat ... |
15-7-2021 at 21:06
by: vmelkon |
Cleaning glassware with limited reagents.
If it is an oxide/hydroxide/carbonate of some transition metal, then H2SO4 or HCl running through it ... |
11-7-2021 at 08:53
by: vmelkon |
Trichloroisocyanuric acid on smwiki
I looked at
http://www.sciencemadness.org/smwiki/index.php/Trichloroisocyanuric_acid
An equation ... |
10-7-2021 at 11:21
by: vmelkon |
How toxic is H2S?
Well, the good news is, that I am fine.
The next step is to convert that into hydrosulfuric acid. I ... |
28-1-2021 at 07:34
by: vmelkon |
How toxic is H2S?
How toxic is H2S?
I made some Al2S3 by direct reaction of the elements.
I took a couple of whiffs ... |
27-1-2021 at 20:35
by: vmelkon |
Experiments with liquid air
[rquote=651759&tid=156761&author=Morgan]Not that I have any idea what would happen but what ... |
21-12-2020 at 17:00
by: vmelkon |
Experiments with liquid air
[rquote=651598&tid=156761&author=EliasExperiments]Hi I've made a video about experiments wit ... |
20-12-2020 at 16:58
by: vmelkon |
Neon yellow precipitate from electrical contacts
Can you collect some in a very tiny metal spoon or glass spoon. Heat it in a flame and see if you ca ... |
17-12-2020 at 22:01
by: vmelkon |
Bank card – gold plated
[rquote=650816&tid=156636&author=itsallgoodjames]My guess is that it's now possible to get a ... |
8-12-2020 at 19:26
by: vmelkon |
Bank card – gold plated
I was surprised because it is just a bank card and I assume that they are intended to be used for 5 ... |
4-12-2020 at 17:15
by: vmelkon |
Bank card – gold plated
Hello guys,
This is just information for those who want to do gold extraction from electronics.
... |
28-11-2020 at 18:56
by: vmelkon |
Something fun: Picking a random atom in a biomolecule and tracing it back to CO2
I'm not sure.
Perhaps use CO2 where the carbon atom is a different isotope. Perhaps use C14.
When ... |
22-10-2020 at 20:50
by: vmelkon |
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