Percent Error Lab Report

Percent Error occurs due to many factors. In this lab by the graph I can state that there was a 100% error in all three unknown substances, Pure Leaf Lemon Tea, Sprite, and Tree Ripe Lemonade. This could be a result of not having properly zeroed the scale or the scale glitching when it came to zeroing it, which would have added extra mass and skewed the results. Another factor that could have resulted in a high percent error would have been the scale itself glitching which would have caused the wrong numbers to show up and the calculations from that point forward would have been incorrect. Another factor which could have resulted in a higher percent error was the fact that the calculated value came from the actual label, therefore it took into account the other
The calibration curve supported this hypothesis because as the data plotted shows as more sugar was added to the solution the density increased, which explains the positive slope of the line of best fit of the calibration curve. Using what is known about the calculated densities of the unknowns it is evident that Pure Leaf Lemon Tea had a greater density than Sprite, which both had a greater density than the Tree Ripe Lemonade. Connecting this back to the nutrition label the Tea which had the greatest grams of sugar per serving had the highest density, while Sprite had the second highest grams of sugar per serving and had the second highest density, and the Lemonade which had the least amount of sugar per serving had the lowest density out of the three unknowns. One of the most prominent ways to show that this hypothesis was supported by the data is to look at the first table, which calculates the density of just sugar water. As more sugar is added the total density goes up, supporting the original