CHEM 6B Study Guide - Midterm Guide: Torr, Sodium Chloride, Exothermic Process

• School: UCSD
• Department: Chemistry and Biochemistry
• Course: CHEM 6B
• Professor: Andrew Kummel

Document Summary

Ions solubility is higher than polar molecules in water. H(solvent) < 0 solubility @ . H(solvent) > 0 solubility @ . Tb = ikbm i = van hoff factor (mgcl2 = 3, nacl = 2) i(real) = charge = concentration of solution. Percent ionization: %i = (i - i(0%)) / (i(100%) - i(0%)) Osmotic pressure: = i(mrt: = gdh o o h = height change, g = acceleration of gravity, d = solution density pascal(kg/ms^2) = 7. 5006x10^-3 torr (mm) = 9. 8692 x10^-6 atm. Solvent goes from lower concentration solution to higher concentration solution. Increases volume, decreases solute concentration of higher concentration o. F(mo) = fraction of collision w/correct molecular orientation. F(e ) = fraction of collisions w required energy (function of temp) C = collision frequency ( function of density) When kf>>kr, reactant collisions are more effective than product collisions so k is big. Ratio of products to reactants reflects differences in s and h.