OK, if no one else will dip their toes in the water, I'll give it a shot.

Ethylene Glycol will freeze first
Sodium Chloride second
Calcium Chloride third

Having said that I think it's a trick question because of the DI water. I'm certainly not a chemist and only guessing.

Happy Friday,
KennyB

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Precision Analytical
Lab
Sent: Friday, March 18, 2005 5:38 AM
To: [log in to unmask]
Subject: [TN] Friday question


This one's real fun.  It's sure to make blood shoot out your nose.

Which of these 3 solutions will freeze first, second, and third and WHY will
they freeze in that order????

1) 10 grams of Calcium Chloride (road salt) dissolved in 20 mL of DI water.

2) 10 grams of Sucrose (table sugar) dissolved in 20 mL of DI Water.

3) 10 grams of Ethylene Glycol (antifreeze) dissolved in 20 mL of DI water.


Shawn Parson

Precision Analytical Laboratory
4106 Cartwright Drive
Suite A
Kokomo, IN  46902
Ph: (765) 455-1993

Specializing in Ion Chromatography (IC) and Surface Insulation Resistance
(SIR)

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