| For the last week of this part of the semester, Nayeli, Betty, and I decided to do the Measurement lab together. We decided to use the Volumetric Flasks, Beakers, Plastic pipettes, Erlenmeyer flasks, and Graduated Cylinders. We then had to measure water to either 5's, 20's, 50's, or 100's (whichever each measurement was required on each tool). We then poured the measured water into very light plastic cups with flat tops (as seen in photo), and placed on a scale. In this lab. We were looking at the percent error numbers. The percentage error is the number that shows how |
close the mass of water was to the volume. For example, the easiest and most accurate measurement tool to see this was the Volumetric flask. For the Volume, we used the 50 mark to do this experiment. From the mass of water, we got 49.39. The Percent Error was 0.61. This shows how close you were to measuring, and how far away you are from the actual value. The R2 value of the Volumetric flask, was the one I thought was the easiest to see. As it was the most accurate. The R2 value represents the closest measurement to the next number. For the volumetric flask, we got R2 = 0.9999995, and is very close to the next number. Again, according to the data we found, we realized that the volumetric flask is the best and most accurate measurement tool. In my opinion, I did very good in this lab. I used tools that I've never used before, and learned that every tool has a different measurement. I calculated a whole different type of math, and I learned a lot in this lab. I feel confident in using measurement tools, and this collaboration with people I've never worked before with went great. I can't wait to do the other labs.