Chemistry Design Prac Electrical Conductivity of Salt Solutions
Investigate the electrical conductivity of salt solutions
Aim
To determine whether the concentration of sodium chloride in solutions affects the electrical conductivity of the solution
Background
Electrical conductivity is the ability to carry out the flow of an electric current. In solutions, this depends almost entirely on the solute present. Ions are capable of carrying an electrical current. When sodium chloride (NaCl) is dissolved into water, Na+ and Cl- ions are formed, which are able to conduct electricity. Electrical conductivity is measured in microSiemens per centimetre (μS/cm)
Table 1|Chemical Properties of Sodium Chloride Solution