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The water molecule has an uneven distribution of charge resulting in it having a dipole nature.
This property is crucial for the development of life as it enables substances to dissolve and react in water.
Equipment;
Sodium Chloride
distilled water
beaker
spatula
stirring rod
Battery
carbon electrodes
connecting wires
lightglobe
Method
1. Place some salt in a small beaker with the electrodes does the circuit work?
2. Place some distilled water beaker with the electrodes does the circuit work?
2. Make a solution of the salt by mixing a small spatula of each salt into a beaker of ionised water.
3. Place some of your solution in beaker with the electrodes does the circuit work?
Questions
1. What happens to the salt when you make a solution? Can you explain this using ions and polarisation?
2. Why does a the solution conduct electricity but the distilled water does not??
3. Why is liquid water so important for life chemistry?
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