stevestojan Posted March 15, 2005 Share Posted March 15, 2005 I realize we may be splitting hairs here, but molal concentration is a separate entity than the number of ions produced per mole, as molality is defined as moles of solute per kilogram solvent. No matter the number of ions produced by dissociation, the concentration of each remains the same. THe ionic strength of solution would change, but that is a story for another day. If you use sodium sulfate, you would theoretically depress freezing point even further. There are two sodiums per sulfate ion, so "i" is 3. 275666[/snapback] You'd had me up until 'I' .... Link to comment Share on other sites More sharing options...
TheMadCap Posted March 15, 2005 Share Posted March 15, 2005 Link to comment Share on other sites More sharing options...
Ramius Posted March 15, 2005 Share Posted March 15, 2005 I realize we may be splitting hairs here, but molal concentration is a separate entity than the number of ions produced per mole, as molality is defined as moles of solute per kilogram solvent. No matter the number of ions produced by dissociation, the concentration of each remains the same. THe ionic strength of solution would change, but that is a story for another day. If you use sodium sulfate, you would theoretically depress freezing point even further. There are two sodiums per sulfate ion, so "i" is 3. 275666[/snapback] bah, thats kids science... i taught stuff tougher than that Link to comment Share on other sites More sharing options...
TheMadCap Posted March 15, 2005 Share Posted March 15, 2005 bah, thats kids science... i taught stuff tougher than that 275722[/snapback] Part of my requirements in graduate school was to be a chemistry tutor for general chem and organic. Most of the freshmen chem students understood the chemistry concepts fairly well, but had almost ZERO understanding of algebra. Very sad. I actually tried for almost five minutes to convince this one girl that: 1+ X - X was equal to 1. Link to comment Share on other sites More sharing options...
stuckincincy Posted March 15, 2005 Share Posted March 15, 2005 Well, the next time you can get 60,000 + people to stand up and scream after accomplishing photosynthesis... 275480[/snapback] Oh. But if we are sufficiently angered, bye-bye to the 60,000. Link to comment Share on other sites More sharing options...
stuckincincy Posted March 15, 2005 Share Posted March 15, 2005 Part of my requirements in graduate school was to be a chemistry tutor for general chem and organic. Most of the freshmen chem students understood the chemistry concepts fairly well, but had almost ZERO understanding of algebra. Very sad. I actually tried for almost five minutes to convince this one girl that:1+ X - X was equal to 1. 275755[/snapback] Boy o boy...I had no anger when I got my first Nobel Prize... Link to comment Share on other sites More sharing options...
TheMadCap Posted March 15, 2005 Share Posted March 15, 2005 Boy o boy...I had no anger when I got my first Nobel Prize... 275764[/snapback] No anger, just enormous frustration. On the bright side, there was lots of eye candy on that job... Link to comment Share on other sites More sharing options...
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