Demo 18-13 Conductivity of Solutions

Using a light bulb in series with various solutions, as shown in Figure 1, the conductivity of the solutions is studied experimentally. Those solutions containing ions are shown to have greater conductivity, as evidenced by the brightness of the light bulb in the circuit of Figure 1. Solutions shown are deionized water, salt water, sugar water, water with vinegar in it, and tap water. The sugar water and the deionized water have the smallest conductivity