Investigation of Solublity Lab Report

Investigation of Solublity Lab Report - Investigating...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Norbert Wang Purpose:  This lab investigates solubility of various compounds in polar, non-polar, acidic, and basic  solvents. Part I – Solubility of a Non-Polar Solvent (Hexane) Results are shown in Figure 1. Hexane, a pure non-polar compound, only interacts with itself by means of  ID/ID. Most of the compounds had both a non-polar portion and a polar portion in their structures. By  having a non-polar part, it is likely that it will dissolve in hexane, at least partially (like dissolves like). Part II – Solubility of a Polar Solvent (Water) Results are shown in Figure 2. Water molecules have a significant dipole moment and form strong hydrogen  bonds with each other. Even though many of the solutes have polar portions, they still were not soluble in  water because their dipole moments were not strong enough to overcome the hydrogen bonding in water.  Also, on many of the compounds the non-polar portion was too massive making it difficult for it to  effectively contact water molecules. Part III – Water Solubility of Alcohols Results are shown in Figure 3. The larger alcohols reached solubility limit sooner than the smaller alcohols.  This makes sense because the larger the alcohol is, the bigger the non-polar portion is. Therefore the longer  the non-polar portion the harder it is for water molecules to make contact with it. For the smaller alcohols,  the main intermolecular force between it and water was D/D. But for the larger alcohols one can also assume  possible dipole/induced dipole forces. In the end, solubility is significantly reduced with larger alcohols. Part IV – Temperature Dependence of Solubility
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/05/2008 for the course CHEM 3AL taught by Professor Li during the Spring '08 term at University of California, Berkeley.

Page1 / 7

Investigation of Solublity Lab Report - Investigating...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online