sodium carbonate.

[proto-pax]

It's been to long since freshman chemistry, and I am unable to figure out how much sodium carbonate I need to use in order to basify my solution to a good ph of around 11 or so.

 

[Apoc]

why don't you use a ph meter?

 

[proto-pax]

Truth? I'd rather not spend the cash, and I'm POSITIVE there is a way to calculate it.

 

[Xt]

Don't quote me on this but, im not even sure sodium carbonate can produce such a ph.
Carbonates are weak bases, hydroxides are medium or strong bases.

Try sodium hydroxide, calcium hydroxide or even potassium hydroxide.

 

[alzabo]

I asked a similar question previously, to which Infundibulum gave a very detailed reply.
Link:

Basic Chemistry - FAQ - All your basic questions and answers - Welcome to the DMT-Nexus

 

[Shaolin]

Don't quote me on this but, im not even sure sodium carbonate can produce such a ph.
Carbonates are weak bases, hydroxides are medium or strong bases.

Try sodium hydroxide, calcium hydroxide or even potassium hydroxide.

1g in 100 ml of H20 will produce a solution with a pH of 11.65.

1g in 1000 ml of H20 will produce a solution with a pH of 11.15.

Use a g, G.

 

[proto-pax]

so sodium carbonate can basify a solution to VERY high pH's? I figured it wasn't the same as bicarbonate what. The Na's are released into solution and the oxygens from alcohols? Is that correct?

 

[justine]

so sodium carbonate can basify a solution to VERY high pH's? I figured it wasn't the same as bicarbonate what. The Na's are released into solution and the oxygens from alcohols? Is that correct?

Do not forget that ph is measured on a log scale, meaning ph 13 is 100 time more basic than ph 11.

 

[Shaolin]

so sodium carbonate can basify a solution to VERY high pH's?

I think solubility is something like 22g/100g and if one would do that, the pH would be 12,3.

 

[proto-pax]

Fantastic!