Homework Help: chemistry

Posted by manny on Monday, October 8, 2007 at 2:46pm.

Hi can you help me with the following question. I don't understand how to answer the question. If someone could tell me the answer for part a of the following sample problem, i would most gladly appreciate it.
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Explain in terms of forces between structural units why
a.) NaCl has a higher boiling point than CH3OH

chemistry - DrBob222, Monday, October 8, 2007 at 4:57pm
NaCl consists of a three dimensional array of Na^+ and Cl^-. NaCl must be melted to break the crystal structure holding it together, then the ionic forces must be broken in order to bring NaCl to a boil. CH3OH, on the other hand, is a liquid already (no melting required) and to boil it only some hydrogen bonding between the molecules must be overcome.
chemistry - manny, Monday, October 8, 2007 at 5:10pm
Thanks a lot!!!!!!!!!!!!!!!!

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