Re: Strange Numbers
From: Uncle Al (UncleAl0_at_hate.spam.net)
Date: 01/20/05
- Next message: jalbers_at_bsu.edu: "How do you calculate the specific heat of an alloy?"
- Previous message: Uncle Al: "Re: % HCl"
- In reply to: number6: "Strange Numbers"
- Next in thread: Steve Turner: "Re: Strange Numbers"
- Reply: Steve Turner: "Re: Strange Numbers"
- Messages sorted by: [ date ] [ thread ]
Date: Thu, 20 Jan 2005 10:50:32 -0800
number6 wrote:
>
> A recent post showed commercial HCl labelled as 31.45 % ...A strange
> number ...that exact value must have importance ... why so .. ?? I
> believe it is made up to be 10 M a nice round number ... then the 31.45
> % is calculated for the label ...
Reagent HCl is 12M or 38%.
> I have come across other "strange numbers" like this ... a Procedure
> for doing loss on ignition at 538 C ... 538 C has to be a very special
> temperature .. No??? well when one finds it is also the nice round 1000
> F ... which was then calculated back to the centigrade scale ...
>
> A commercial once bragged that their product ... Ivory Soap... was 99
> 44/100 % pure ...
> Impressive ... maybe ... until one finds out the impurity analyses for
> unreacted alkali, carbonate and minerals on the product totalled 0.56 %
> ... hence 99 44/100 % ...
> Great advertising for a commercial product ... but industrial metals
> are the same ... 99.999 % silver for instance is about 99.85 % silver
> ... but 100- (sum of impurities for five 9's silver) is 99.999 % ...
-- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) http://www.mazepath.com/uncleal/qz.pdf
- Next message: jalbers_at_bsu.edu: "How do you calculate the specific heat of an alloy?"
- Previous message: Uncle Al: "Re: % HCl"
- In reply to: number6: "Strange Numbers"
- Next in thread: Steve Turner: "Re: Strange Numbers"
- Reply: Steve Turner: "Re: Strange Numbers"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
