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Writing Equations For Freezing Point Lab
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Topic: Writing Equations For Freezing Point Lab (Read 3312 times)
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student8607
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Writing Equations For Freezing Point Lab
«
on:
November 23, 2008, 01:47:56 PM »
This past week I did a chemistry lab that tested the freezing point of different solutes in water.
Sucrose: C12H22O11(s) + H2O(l) -->
Glucose: C6H12O6(s) + H2O(l) -->
Di-alcohol: C2H4(OH)2(aq) + H2O(l) -->
Tri-alcohol: C3H5(OH)3(aq)+ H2O(l) -->
I'm just not sure how to finish writing these "dissolution of the solid into water" equations?? Do I just group everything together like (C12H24O12) for sucrose?
I also wasn't sure if di-alcohol and tri-alcohol would classify as liquids or aqueous solutions?
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sjb
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Re: Writing Equations For Freezing Point Lab
«
Reply #1 on:
November 23, 2008, 03:25:35 PM »
X
(aq)
means that it is already in aqueous (water) solution. X
(l)
means that it is a liquid. Can you think of some other liquids that you may have come across that are not water?
You should not just group everything together like C
12
H
24
O
12
unless you are sure you are creating a new substance...
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student8607
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Re: Writing Equations For Freezing Point Lab
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Reply #2 on:
November 23, 2008, 03:29:37 PM »
OK, well then the alcohols are definitely in aqueous form.
No, no new substance was formed. They were just mixed together???
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Writing Equations For Freezing Point Lab