[alt-photo] Re: Zia standard solutions

[Paul Viapiano]

I'll tell you what I'd do. Post on this list for help...



----- Original Message ----- 
From: "Loris Medici" <mail at loris.medici.name>
To: "The alternative photographic processes mailing list" 
<alt-photo-process-list at lists.altphotolist.org>
Sent: Wednesday, July 21, 2010 11:33 AM
Subject: [alt-photo] Re: Zia standard solutions


>  Terry you start to look funny from here... I'll play your game anyway!
>
> How about this scenarios:
>
> 1. You need to prepare a 10% sulfuric acid solution from concentrated 
> sulfuric acid. What to do?
>
> 2. You're asked to prepare trisodium citrate solution with an "exact" 
> strenght of 20%. (That's what the manual / instructor and/or process needs 
> calls for...) All you can have from the chemistry store is the dihydrate 
> or the pentahydrate variants. What to do?
>
> Regards,
> Loris.
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