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Fri, 2 Apr 2010 21:29:41 -0700 |
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>just to nit pick a bit more, here is the offitial TRUTH about specific
> gravity in a sucrose solution
>
I wish to thank my Chilean friend (the one with so much idle time on his
hands) for once and for all settling the vexing question:
How much volume does 2kg of 1:1 w:w sucrose solution at 20C occupy?
If we divide 2000g by the official U.S. Government 1942 density figure of
1.22854, we obtain a result of 1628ml.
So a 1:1 w:w sucrose solution takes up 1.628 times as much volume as the
water alone.
We can all sleep more untroubled now.
Also note another commonly confusing point.
Although a 1:1 sucrose solution is 50% sugar by weight, it is 61.5% sugar by
volume (contains 61.5g sugar per 100ml).
When European researchers refer to a 60% sucrose solution, they mean 1:1
syrup (their sloppy rounding off will likely keep Juanse awake).
This means that if you put 615g of sugar into a liter bottle and top it off
with water (at 20C, of course), that you will then have a liter of 50%
sucrose w:w, or 61.5% sucrose w:v.
For those troglodytes still using gallon buckets and pounds, that means that
1 U.S. gallon (3785 ml) of 1:1 w:w syrup would contain 5.125 lbs of sugar.
For those of us not wishing to pick nits, 5 lbs of sugar topped off to a
gallon would likely be close enough.
Randy Oliver
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