Homework Help: physical science

Posted by melanie on Thursday, August 18, 2011 at 9:08pm.

what is the freezing point depression when 153g of bromine is added to 1000g of benzene?

physical science - bobpursley, Thursday, August 18, 2011 at 9:15pm
Well, the Br2 dissolves, and remains in solution as Br2 (unless the presence of a catalyst or strong light, in which it reacts).

deltaT=kf*m

molality= molesBr/1kg=153/70=2.19

look up kf for Benzene
http://hyperphysics.phy-astr.gsu.edu/hbase/tables/bpelev.html

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