Interesting estimates

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 Rigil Kent (January 03, 2013, 11:50:01 AM):
Source? (Or sauce?)
The spoiler links to the source. ;)

I must say, the answer leaves me a bit annoyed about the inflated price of table salt! ::)

I leave it as an exercise for the reader to derive the simple formula
ds = (cs*fw*dw*ρw)/((1-fw)*ρs) ?
 cr1t (January 03, 2013, 11:58:55 AM):
Using the following rough data estimates (drawn from memory):Ocean salinity (by mass) cs = 3% = 0.03Fraction of Earth’s surface covered in sea/ocean fw = 70% = 0.7Average ocean depth dw = 3,000 metresOcean water density ρw = 1 ton/m3Density of granular salt ρs = 1.3 ton/m3
yields a salt depth of ds = 162 metres.

 Mefiante (January 03, 2013, 14:29:29 PM):
ds = (cs*fw*dw*ρw)/((1-fw)*ρs) ?
Perfect. Well done!

;)

'Luthon64
 Rigil Kent (June 13, 2013, 16:51:22 PM):
Staying with the halides: What volume of potential chlorine gas, at atmospheric pressure, is locked up in a 500g packet of table salt?

Rigil
 Mefiante (June 13, 2013, 18:16:59 PM):
You didn’t mention the temperature :P. It’s equally important. I’ll assume (1) standard ambient temperature and pressure (SATP) conditions (25 °C and 100 kPa = 0.986 atm), and (2) that molecular chlorine gas (Cl2) behaves like an ideal gas at SATP conditions.

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'Luthon64