Solubility 1

exam 1, chem 116, WVU spring '26

Electrolyte

has mobile ions

Non-electrolyte

no mobile ions, includes most soluble nonmetal compounds

Strong electrolyte

substance dissolves completely into its respective ions

Weak electrolyte

substance does not dissolve completely

Polar molecule

you can draw one line separating the positive and negative poles

Molarity: symbol

M

Molarity: definition

mols solute / L solution

Molality: symbol

m

Molality: definition

mols solute / Kg solvent

Mole fraction: definition

moles of x / total moles

Molarity is __ because heating and cooling changes volume

temperature dependent

Mass percent: definition

mass x / mass total solution

Solubility of solids __ when pressure changes

doesn’t change

Solubility of almost all solids ___ when temperature increases

increases

Solubility of gases in liquids __ when temp increases

decreases

Solubility of a gas increases with an increase in __ above the solution

partial pressure