Homework Help: Chemistry

Posted by Tanya on Sunday, January 18, 2009 at 7:47pm.

What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23.3 degrees Celsius? Assume the density for water is exactly 1 g/mL

Chemistry - bobpursley, Sunday, January 18, 2009 at 7:54pm
Use the freezing point depression

-23.3=molessolute/10kgwater * -.52

calculate the moles of solute (tehylene glycol) and convert that to mass.
Chemistry - DrBob222, Sunday, January 18, 2009 at 8:04pm
A small correction here to correct a typo. The -.52 should be -1.86.

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