Colligative property: a property that depends solely on the number of particles added, not on the identity of the particles themselves. These include: * vapor pressure of a solution * boiling point of a solution * freezing point of a solution * osmotic pressure
An acid that does not disassociate completely in solution, that is the protons are not donated completely in solution as a strong acid would be. Some weal acids only donate about 1% of their protons to the solution. They are weak conductors of electricity because of this characteristic.