CHEM 1120: cp11cp12

Study Flashcards

15 Cards in this Set

Front	Back
What physical properties are affected by the strength of the intermolecular forces?	surface tension, viscosity, capillary action, and vapor pressure
What happens to these physical properties as the strength of intermolecular forces increases?	Increase melting point boiling point viscosity surface tension Decrease vapor pressure
Strength of intermolecular forces	Weak London dispersion dipole-dipole Moderate hydrogen bonding ion-dipole
What increases boiling point	Higher molecular weight and strength of Intermolecular forces
hydrogen bonding	F,O, N can hydrogen bond
Process of vaporization	Increase with higher temperature increase surface area decreased strength of intermolecular force
Sublimation	Change in matter from solid to gas
deposition	gas turning into a solid
Physical Properties of Intermolecular Forces affected...	Melting/Freezing Point Boiling Point Solubility Viscosity
molar mass	mass of 1 mol of the substance numerically equal to the formula mass (atomic mass) but is expressed in g/mol mole--mass conversion
Molarity	mol solute/L soln
Molality (m)	= (amt(mol)of a solute) / (mass(kg) of solvent)
Saturated solutions	When a solute is dissolved to its max. capacity
Solute	What is dissolved in a solution (salt would be the solute in a solution of salt and water)
mole fraction	(mol solute)/(mol solute + mole solvent)