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Other: How does sugar dissolve in water?

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      CommentAuthorekendra
    • CommentTimeApr 25th 2008
     
    Here's a science question for you: when a litre of sugar dissolves in water, does it not take up more space?

    When it dissolves, where does it go?

    Does the dissolved sugar take up no extra space, some extra space or the full litre's worth of space?

    What a mystery eh?
    • CommentAuthorPraveen
    • CommentTimeApr 25th 2008
     
    Hmm...sounds like you need to make some gulab jamuns to find your answer =>;)

    Sugar does add mass to the water. It doesnt disappear since it can be recovered once the water evaporates. What it does is spread out over the liquid. Or when you heat the water, it becomes a smaller particle, but it still remains an individual particle.

    Krishna has certainly made a wonderful world.

    Hope that helped
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      CommentAuthorccd
    • CommentTimeApr 27th 2008 edited
     
    What you need is in-line infrared Brix measurement sensor- you can measure the amount of dissolved sugar in the water using a direct measurement. Brix sensor (if you got one) measures the vibrational frequency of the sugar molecules and answers your question in a practical way.. It will give you a mass ratio of the dissolved substance to water in a liquid. A 55 Rixucrose solution has 55 grams of sucrose per 100 grams of water; - to put it another way, 55 grams of sucrose sugar and 45 grams of water exist in the 100 grams of syrup - that is a dangerous substance... as we know... You really have to understand molecular structure of the mix to see what the volume of the 1000 grams of such solution will be - it will most certainly be less then a litre. Normally (without sugar) it will be exactly one litre for 1000 grams of water, one litre of syrup is much much heavier... in may different ways... a related issue is purity of sugar...I mean physical purity, not devotional, Im sure everything cooked by Ekendra has absolute devotional purity, even if cooked with palm sugar...
  4.  
    sugar does add a little bit of more volume to water, but not that much. molecules of sugar fit between molecules of water and thus the increase in volume is only partial.

    What is even more fascinating, is that such solutions are still transparent, while a very, very thin sheet of aluminum is not. you can see through 100 feet of sea water (lots of water and salt) but not through a microscopic thickness of an aluminum sheet.

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