CHEM 112 Lecture Notes - Lecture 15: Boiling Point, Chemical Polarity, Electronegativity

• School: UMASS-Amherst
• Department: Chemistry
• Course: CHEM 112
• Professor: Xueying Qin

Document Summary

Can have attraction between partial negative and positive. As partial negative oxygen in water approaches, o2 shifts electron temporary distribution to make it not symmetrical creating temporary dipole. Making dipole from nonpolar depends on molecules polarizability. Greater molecular weight means more polarizable to determine polarity draw the molecule and cut it in half. Does not matter whether polar or nonpolar. Only imf present in two nonpolar molecules. Only considered as force if no other is present. Size of molecules large molecules cannot get as close to center so imf is weaker. Smaller molecules have strong attraction since they can be closer. Contain bonds such as o-h, n-h, h-f. Molecules that have more hydrogen bonding potential have higher boiling point. Unsaturated solution is capable of dissolving more solute. Solution that contains more dissolved solutes than capable of holding. How much solute dissolved per unit of solute.