| http://digfir-published.macmillanusa.com/hm_custom_osu/hmosu_lab16_freezingpointdepression_f13.html | Chapter 14. Freezing Point Depression
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| http://digfir-published.macmillanusa.com/hm_custom_osu/hmosu_lab16_freezingpointdepression_f13_dlap.xml | DLAP questions | 51eecf7db62f8b444000002d |