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Groups > sci.physics > #634024
| From | Serg io <invalid@invalid.com> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Which One Is Which? |
| Date | 2017-05-21 16:21 -0500 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <oft0d6$19eu$1@gioia.aioe.org> (permalink) |
| References | <1fcl3vel9pyku.zil0n19mc08u$.dlg@40tude.net> |
On 5/21/2017 2:04 PM, ClutterFreak Incarnate wrote:
> If we have two identical bottles one with Super Washing Soda in it and the
> other with Borax in it, with no information written on the bottles as which
> one is which, then how we determine which one is which?
>
super washing soda is 85% Sodium Carbonate (rest is water)
anhydrous Na2CO3,Sodium carbonate crystallizes from water to form three
different hydrates:
sodium carbonate decahydrate (natron), Na2CO3·10H2O.
sodium carbonate heptahydrate (not known in mineral form), Na2CO3·7H2O.
sodium carbonate monohydrate (thermonatrite), Na2CO3·H2O.
density
2.54 g/cm3 (25 °C, anhydrous)
1.92 g/cm3 (856 °C)
2.25 g/cm3 (monohydrate)[1]
1.51 g/cm3 (heptahydrate)
1.46 g/cm3 (decahydrate)[2]
..................................
Borax, also known as sodium borate, sodium tetraborate, or disodium
tetraborate
The term borax is often used for a number of closely related minerals or
chemical compounds that differ in their crystal water content:
Anhydrous borax (Na2B4O7)
Borax pentahydrate (Na2B4O7·5H2O)
Borax decahydrate (Na2B4O7·10H2O)
density (solid)
1.73 g/cm3 (solid)
........................
one has carbon, the other boron, unknown is the water content. So heat
them both up to drive out the water, then determine the density.
or you could put some ants in each bottle, one kills ants
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Which One Is Which? ClutterFreak Incarnate <Clutter@FakeAddress.com> - 2017-05-21 14:04 -0500
Re: Which One Is Which? The Starmaker <starmaker@ix.netcom.com> - 2017-05-21 13:56 -0700
Re: Which One Is Which? Serg io <invalid@invalid.com> - 2017-05-21 16:21 -0500
Re: Which One Is Which? "nuny@bid.nes" <alien8752@gmail.com> - 2017-05-22 22:52 -0700
Re: Which One Is Which? "hanson" <hanson@quick.net> - 2017-05-23 12:33 -0700
Re: Which One Is Which? ClutterFreak Incarnate <Clutter@FakeAddress.com> - 2017-05-24 20:04 -0500
Re: Which One Is Which? jimp@specsol.spam.sux.com - 2017-05-25 01:38 +0000
Re: Which One Is Which? ClutterFreak Incarnate <Clutter@FakeAddress.com> - 2017-05-30 21:27 -0500
Re: Which One Is Which? "hanson" <hanson@quick.net> - 2017-05-30 21:08 -0700
Re: Which One Is Which? jimp@specsol.spam.sux.com - 2017-05-31 04:44 +0000
Re: Which One Is Which? Serg io <invalid@invalid.com> - 2017-05-31 08:28 -0500
Re: Which One Is Which? ClutterFreak <clutterfreakincarnate@gmail.com> - 2017-06-04 20:56 -0700
Re: Which One Is Which? "hanson" <hanson@quick.net> - 2017-06-05 12:37 -0700
Re: Which One Is Which? "hanson" <hanson@quick.net> - 2017-05-24 18:59 -0700
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