lboogy Posted March 5, 2007 Share Posted March 5, 2007 Hi everyone, Is sucrose solution just water and sugar, or are there any other properties to it? Basicall I have to make it for some coursework, I've surfed around for the formula but can find it on the web, do I just mix water and sugar? How much? thanks Link to comment Share on other sites More sharing options...
YT2095 Posted March 5, 2007 Share Posted March 5, 2007 it is just regular table (coffee) sugar in water yes. as for "How Much" well it`s a soln, so it can be anything from a single molecule in a litre to a saturated soln whereby no more sugar will dissolve it in at a given temperature. and everything in between Link to comment Share on other sites More sharing options...
lboogy Posted March 5, 2007 Author Share Posted March 5, 2007 Ahhhh I see now, thanks for your help there mate. So, do you think if I was to test osmosis by potato skin in water - the variable being the amount of sugar, this would be classed as scientific? Or would this lack vigour? Link to comment Share on other sites More sharing options...
YT2095 Posted March 5, 2007 Share Posted March 5, 2007 it would be classed as Scientific as long as you kept accurate notes on every parameter changed and be as equally accurate with recording your observations, Sure Link to comment Share on other sites More sharing options...
lboogy Posted March 30, 2007 Author Share Posted March 30, 2007 Hey...just 1 more question - I promise! If I know I want 1molar of sucrose solution, how would I measure that on a weighing scale in grams? I've get that 1 molar is 6.02 x (10)23 formula units, but how do weigh that? I'm stuck! Link to comment Share on other sites More sharing options...
fredrik Posted March 30, 2007 Share Posted March 30, 2007 What you are looking for is the "molarmass" - the mass of one mole of the compound. The molaramss of sucrose is 342.3 g/mol. http://en.wikipedia.org/wiki/Sucrose With som sugars you have to compensate for the moist when you scale it (glucose for example). But i think normally sucrose is pretty dry. 342.3 g (DRY) sucrose and dilute to 1 liter final volume with water. /Fredrik Link to comment Share on other sites More sharing options...
lboogy Posted March 30, 2007 Author Share Posted March 30, 2007 Hi Fredrik - thanks for your help, so, just to confirm I have understood you correctly, 342.3g of dry normal table sugar mixed with enough water to equal a total of 1 liter will give me sucrose solution of 1M? Link to comment Share on other sites More sharing options...
fredrik Posted March 30, 2007 Share Posted March 30, 2007 Yes that's correct. /Fredrik Link to comment Share on other sites More sharing options...
lboogy Posted March 30, 2007 Author Share Posted March 30, 2007 wow that's a lot of sugar - i never realised 1M was so much. thanks Fredrick Gav Link to comment Share on other sites More sharing options...
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