Electrical Conductivity Of Salt Water Experiment

What you ll need to experiment with the conductivity of salt water.

Electrical conductivity of salt water experiment. The elementary sodium na presents an excess electron and the chloride cl has a strong affinity for electrons. Electrical conductivity with salt water working model school science exhibition project electricalconductivity scienceexhibition howtofunda. Place about 0 2 g of solid calcium carbonate ce caco3 into a small clean beaker and test the conductivity. Add 5 ml distilled water to the calcium carbonate.

When table salt nacl is dissolved in water the water molecules pull the sodium na and chlorine cl ions apart. An ion is an atom that has an electrical charge because it has either gained or lost an electron also meaning it has a positive charge and a negative charge when you put salt in water the water molecules pull the sodium and chlorine ions apart so they are floating freely. Dissolving solid sodium chloride table salt in water releases ions according to the equation. This is because salt water is a good conductor of electricity which makes ocean water a resource for renewable energy.

Since fresh water doesn t have salt it can t conduct electricity. Conductivity can be much higher than the maximum values shown above under. Electrical conductivity will be measured as the ion concentration of the solution being monitored is gradually increased by the addition of concentrated nacl drops. In the salt water the salt breaks down into little ions that conduct electricity.

In this experiment you will study the effect on electrical conductivity of increasing sodium chloride concentration. To test the conductivity of salt water vs fresh water we can perform a simple and fun experiment. Repeat step 5 in fresh water. Salt molecules are made of sodium ions and chlorine ions.

Test the conductivity of the solution. 30 1500 freshwater streams 100 2000 the table above shows some ranges of conductivity values you might encounter in the field. Dispose of this solution in the sink and rinse the beaker. Test the conductivity of the solution.

Conductivity of water water type conductivity umhos cm distilled water 0 5 3 0 melted snow 2 42 potable water in u s. Add 5 ml distilled water to the sodium chloride. The water not only dissolves the salt as well as it dissociates the salt molecule. Does the buzzer go off.