Electrical conductivity is a measure of how easily electric current passes through a material and is a result of the presence of charged particles in the material. Many solutions, including those made with salt, sugar, or baking soda, can be tested for their electrical conductivity. But which solution will have the highest conductivity? Let’s take a look at the following options.
Salt Water
Saltwater is a great conductor of electricity because it contains dissolved ions. When salt is dissolved in water, the positive and negative ions in the salt are separated from each other. Because of this, the ions are free to move around and the saltwater becomes a good conductor of electricity. This makes saltwater one of the best solutions when it comes to electrical conductivity.
Sugar Water
Sugar water does not contain any ions, so it is not a good conductor of electricity. This is because the sugar molecules are too large to be broken down into ions, and therefore do not provide any medium for electrical current to travel. As a result, sugar water does not have very high electrical conductivity.
Baking Soda Solution
Baking soda is an alkaline substance and when combined with water, it dissolves into sodium and bicarbonate ions. This makes baking soda solution a good conductor of electricity as the ions are free to move around and conduct electricity. It has a higher conductivity than sugar water, but not as high as saltwater.
Conclusion
Based on the information above, it is clear that salt water is the solution with the highest electrical conductivity. This is because it contains dissolved ions which are free to move around and conduct electricity. Sugar water and baking soda solution also have some electrical conductivity, but not as much as salt water.