At the end of Part A in this experiment, it can be determined that Sodium Chloride had the highest amount of conductivity tested by all groups. On the graph above, the data shows that NaCl (sodium chloride) held the highest amount of electrical conductivity for all groups and on the table it reads the highest numbers across its row. Also as seen in the data above, ethanol had the lowest amount of conductivity with sucrose, acetic acid, ammonia, and MgCl2 following in ascending order. It can also be determined from Table 1 that there were 2 solutions with strong electrolytes, 2 with weak, and 2 with no electrolytes. The two solutions with strong electrolytes were NaCl and MgCl2. Ammonia and acetic acid had weak electrolytes.
That leaves Sucrose and Ethanol to be the two solutions with no electrolytes. Comparing the strengths of the solutions to the electrical conductivity, it is shown that if the solution has a higher conductivity reading then it will have a higher electrolyte strength.
At the end of Part B in this experiment, it can be determined that Gatorade had the strongest electrolytes within it out of the three commercialized drinks tested. The average amount of electrolytes in Gatorade came to 2,451.5 microS which is a weak electrolyte, but was higher than Monster and Sprite. Monster’s microS was an average of 1,790.5. Sprite’s was measured to have 764.5 microS. These numbers are very low; thus it can also be determined by comparing Part B’s data to the baseline data that all three drinks have weak electrolytes.
Error Analysis
One error that could have occurred during this experiment was a human error due to some students not cleaning all of the instruments out correctly before usage. When this is done, the leftover residue in the equipment could affect the conductivity outcome. An instrumental error could have occurred when some groups didn’t get all of the solution out of the weighing dish when emptying into the beaker. A blunder occurred when most groups weighed the 3.0g of solution into their dish but were a few grams over or under that amount. There were two external influences that could have affected the outcomes in this experiment as well. One was the contamination from the paper towels when drying off equipment before use. The other was noticed by one group in Part A that MgCl2 could receive moisture from the air while weighing in the dish, so the added water weight effected the 3.0g of solution. One last error that was noticed was the carbonated bubbles found within Monster and Sprite during testing in Part B. This was an external influence that could have affected the volume of these drinks.