On Saturday, March 2, 2002 at 5:49:02 AM UTC-5, to-ape wrote:   
   > On solutions...   
   > Among the water-soluble chemicals, some are more soluble than others. For   
   > example, 100 ml of cold water will dissolve 147 grams of  potassium   
   > carbonate, but only 22 grams of sodium carbonate.   
   >   
   > My rather elementary questions then, are:   
   >   
   > 1: Can 100 ml dissolve 147 grams of potassium carbonate *and* 22 grams of   
   > sodium carbonate? Or is the "dissolving capacity" of the water used up once   
   > you dissolve *either* 147 grams of potassium carbonate *or* 22 grams of   
   > sodium carbonate?   
   >   
   > 2: Assuming the answer to q 1 above is "the water can only dissolve one or   
   > the other, not both at the same time". Is there a "proportionality of   
   > percentages" or whatever to call it - i.e. if one dissolves 73.5 grams of   
   > potassium carbonate, then 50% of the dissolving capacity is used up, and the   
   > water will dissolve max 11 grams of sodium carbonate?   
   >   
   > 3: If one dissolves 73.5 grams of potassium carbonate and 11 grams of sodium   
   > carbonate, and then set the water aside to evaporate, will the least soluble   
   > carbonate crystallise out first? Will *all* of the sodium carbonate leave   
   > solution before *any* of the potassium carbonate?   
   >   
   > TIA   
   >   
   > Torgeir Apeland   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)