Conductivity Lab

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Conductivity Lab

| Did conduct | Did not conduct|
Solid sodium chloride| | |
Solid sucrose | | |
Distilled water | | |
Alcohol| | |
Tap Water| | |
Distilled water and sodium chloride | | |
Distilled water and sucrose | | |
Alcohol and sodium chloride | | |
Alcohol and sucrose | | |

Questions:

2). Did any of the liquids conduct an electric current? If so, which one(s), and please explain why or why not thoroughly? The tap water contains ions and minerals that conduct electricity due to the charges within the water. Distilled water is a liquid covalent compound where there are no charges or minerals and ions floating around and thus no electricity is conducted. The conductivity of either liquid has to do with the ions (charged atoms) within the water and since tap water has a lot of these ions, it can conduct whereas pure, distilled water has few, if any, ions which is why there is a very low conductivity.

3). Did either of the water solutions conduct an electrical current? If so, which one(s), and thoroughly explain why or why not? The distilled water and sodium chloride solution conducted an electrical current whereas the distilled water and sucrose did not. This is due to the fact that when sodium chloride is split, it is split into Na+ which is a cation and Cl- which is an anion. These ions are charged particles in that water that cause conductivity. The sucrose in the water has its intramolecular forces broken but this does not lead to charged particles as it does with the salt. Instead, the particles are neutral molecules themselves so there is no electric charge within the distilled water and sucrose.

4). Did either of the alcohol solutions conduct an electrical current? If so, which one(s), and thoroughly explain why or why not? Neither alcohol with sodium chloride or sucrose conducted electricity. For alcohol and sodium chloride, the alcohol did not break the ionic compound into charged...
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