It is possible to differentiate between strong and weak
electrolytes by measuring their electrical conductance. Strong
electrolytes follow Kohlrausch's law, whereas weak electrolytes are
described by Ostwald's dilution law. The examination of the
concentration dependence of the conductivity allows the molar
conductivities of infinitely diluted electrolytes to be determined,
and facilitates the calculation of degree of dissociation and the
dissociation constants of weak electrolytes.
- With detailed experiment guide
- Simplified implementation: all pre-settings already prepared
- Easy evaluation via software
- Determine the concentration dependence of the electrical
conductivity of potassium chloride and acetic acid solutions.
- Calculate the molar conductivity using data from the
measurements taken and determine the molar conductivity at infinite
dilution by extrapolation.
- Determine the dissociation constant of acetic acid.
What you can learn about
- Kohlrausch's law
- Equivalent conductivity
- Temperature-dependence of conductivity
- Ostwald's dilution law
- Precision balance 620g/0.001g
Software included. Computer not provided.