[alt-photo] Re: Stoichiometry for the nonscientist
davidashcraft at sti.net
Mon Aug 2 14:53:30 GMT 2010
It seems this hole is much deeper than what was represented
originally. I can see why prepackaged kits are so popular.
You went from gms to ml?
On Aug 1, 2010, at 10:27 PM, etienne garbaux wrote:
> David wrote:
>> OK - What if I needed to mix a formula like: 180 gms potassium
>> K2C204.H2O mixed with water to make 1 liter. I only have potassium
>> carbonate and oxalic acid on hand.
>> I know that I can make this formula of potassium oxalate by mixing
>> potassium carbonate and oxalic acid; PC is K2CO3 and OC is C2H204.
>> Now how would I know how much of each of these to make up my original
> . If you react 489 ml of 2 molar potassium carbonate 489 ml of 2
> molar oxalic acid, then add water to make 1 liter, you would have
> what you want.
> Note that if you started with potassium hydroxide (KOH) instead of
> potassium carbonate, you would require two mols for each mol of
> oxalic acid and the only byproduct would be water.
> Best regards,
> Alt-photo-process-list | http://altphotolist.org/listinfo
More information about the Alt-photo-process-list